From 7f0722aeb60031c28d239a6ac1fc1c621de22bd7 Mon Sep 17 00:00:00 2001
From: tamaro <tamarowalter@yahoo.de>
Date: Wed, 17 Sep 2025 14:24:57 +0200
Subject: [PATCH 1/3] codecleaning with new codechecker version

---
 ...kup_moodleoverflow_activity_task.class.php |   1 -
 .../backup_moodleoverflow_stepslib.php        |   7 +-
 ...ore_moodleoverflow_activity_task.class.php | 192 +++++++---
 .../restore_moodleoverflow_stepslib.php       |  44 ++-
 classes/anonymous.php                         |  13 +-
 classes/capabilities.php                      |   2 -
 classes/discussion/discussion.php             |  70 +++-
 classes/event/course_module_viewed.php        |   1 -
 classes/event/discussion_created.php          |   1 -
 classes/event/discussion_deleted.php          |   2 -
 .../event/discussion_subscription_created.php |   1 -
 classes/event/discussion_viewed.php           |   2 -
 classes/event/post_deleted.php                |   1 -
 classes/event/rating_created.php              |   1 -
 classes/event/rating_deleted.php              |   1 -
 classes/event/rating_updated.php              |   1 -
 classes/event/readtracking_disabled.php       |   1 -
 classes/event/readtracking_enabled.php        |   1 -
 classes/event/subscription_created.php        |   1 -
 classes/event/subscription_deleted.php        |   1 -
 classes/manager/mail_manager.php              |  49 ++-
 classes/observer.php                          |   6 +-
 classes/output/email/renderer.php             |   9 +-
 classes/output/email/renderer_textemail.php   |  10 +-
 classes/output/moodleoverflow_email.php       |  30 +-
 classes/post/post.php                         | 138 +++++--
 classes/post/post_control.php                 | 138 ++++---
 classes/post_form.php                         |  18 +-
 classes/privacy/data_export_helper.php        |  59 ++-
 classes/privacy/provider.php                  |  61 +--
 classes/ratings.php                           |  83 +++--
 classes/readtracking.php                      |  17 +-
 classes/review.php                            |  21 +-
 classes/subscriptions.php                     |  62 +---
 classes/tables/userstats_table.php            |  15 +-
 classes/task/clean_readrecords.php            |   3 -
 classes/task/send_daily_mails.php             |   1 -
 classes/task/send_mails.php                   |   1 -
 classes/task/send_review_mails.php            |  27 +-
 db/upgrade.php                                |  10 +-
 db/upgradelib.php                             |  22 +-
 discussion.php                                |  20 +-
 externallib.php                               |  58 +--
 grade.php                                     |   2 +-
 index.php                                     |  24 +-
 lib.php                                       |  41 +--
 locallib.php                                  | 347 +++++++++++++-----
 markposts.php                                 |  21 +-
 mod_form.php                                  |  34 +-
 post.php                                      |  23 +-
 renderer.php                                  |   1 -
 resetanonymous.php                            |  19 +-
 settings.php                                  | 174 ++++++---
 subscribe.php                                 |  24 +-
 tests/behat/behat_mod_moodleoverflow.php      |  42 ++-
 tests/dailymail_test.php                      |   8 +-
 tests/discussion_test.php                     |  13 +-
 tests/generator/lib.php                       |   1 -
 tests/locallib_test.php                       |   2 -
 tests/notification_mail_test.php              |   1 -
 tests/post_test.php                           |  30 +-
 tests/privacy_provider_test.php               | 155 ++++----
 tests/ratings_test.php                        |   7 +-
 tests/readtracking_test.php                   |   1 -
 tests/review_test.php                         |  29 +-
 tests/subscriptions_test.php                  | 117 +++---
 tests/userstats_test.php                      |   8 +-
 tracking.php                                  |   3 -
 userstats.php                                 |   5 +-
 view.php                                      |  11 +-
 70 files changed, 1518 insertions(+), 827 deletions(-)

diff --git a/backup/moodle2/backup_moodleoverflow_activity_task.class.php b/backup/moodle2/backup_moodleoverflow_activity_task.class.php
index 240538b00e7..368c9c07668 100644
--- a/backup/moodle2/backup_moodleoverflow_activity_task.class.php
+++ b/backup/moodle2/backup_moodleoverflow_activity_task.class.php
@@ -36,7 +36,6 @@
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 class backup_moodleoverflow_activity_task extends backup_activity_task {
-
     /**
      * No specific settings for this activity
      */
diff --git a/backup/moodle2/backup_moodleoverflow_stepslib.php b/backup/moodle2/backup_moodleoverflow_stepslib.php
index 391f6754efb..6640f4a11e0 100644
--- a/backup/moodle2/backup_moodleoverflow_stepslib.php
+++ b/backup/moodle2/backup_moodleoverflow_stepslib.php
@@ -32,7 +32,6 @@
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 class backup_moodleoverflow_activity_structure_step extends backup_activity_structure_step {
-
     /**
      * Defines the backup structure of the module
      *
@@ -108,11 +107,13 @@ protected function define_structure() {
 
         // All these source definitions only happen if we are including user info.
         if ($userinfo) {
-            $discussion->set_source_sql('
+            $discussion->set_source_sql(
+                '
                 SELECT *
                   FROM {moodleoverflow_discussions}
                  WHERE moodleoverflow = ?',
-                [backup::VAR_PARENTID]);
+                [backup::VAR_PARENTID]
+            );
 
             // Need posts ordered by id so parents are always before childs on restore.
             $post->set_source_table('moodleoverflow_posts', ['discussion' => backup::VAR_PARENTID], 'id ASC');
diff --git a/backup/moodle2/restore_moodleoverflow_activity_task.class.php b/backup/moodle2/restore_moodleoverflow_activity_task.class.php
index 69b3703f34a..c706015b28b 100644
--- a/backup/moodle2/restore_moodleoverflow_activity_task.class.php
+++ b/backup/moodle2/restore_moodleoverflow_activity_task.class.php
@@ -38,7 +38,6 @@
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 class restore_moodleoverflow_activity_task extends restore_activity_task {
-
     /**
      * Define (add) particular settings this activity can have
      */
@@ -79,18 +78,24 @@ public static function define_decode_rules() {
 
         $rules[] = new restore_decode_rule('MOODLEOVERFLOWVIEWBYF', '/mod/moodleoverflow/view.php?f=$1', 'moodleoverflow');
         // Link to forum discussion.
-        $rules[] = new restore_decode_rule('MOODLEOVERFLOWDISCUSSIONVIEW',
+        $rules[] = new restore_decode_rule(
+            'MOODLEOVERFLOWDISCUSSIONVIEW',
             '/mod/moodleoverflow/discussion.php?d=$1',
-            'moodleoverflow_discussion');
+            'moodleoverflow_discussion'
+        );
         // Link to discussion with parent and with anchor posts.
-        $rules[] = new restore_decode_rule('MOODLEOVERFLOWDISCUSSIONVIEWPARENT',
+        $rules[] = new restore_decode_rule(
+            'MOODLEOVERFLOWDISCUSSIONVIEWPARENT',
             '/mod/moodleoverflow/discussion.php?d=$1&parent=$2',
-            ['moodleoverflow_discussion', 'moodleoverflow_post']);
-        $rules[] = new restore_decode_rule('MOODLEOVERFLOWDISCUSSIONVIEWINSIDE', '/mod/moodleoverflow/discussion.php?d=$1#$2',
-            ['moodleoverflow_discussion', 'moodleoverflow_post']);
+            ['moodleoverflow_discussion', 'moodleoverflow_post']
+        );
+        $rules[] = new restore_decode_rule(
+            'MOODLEOVERFLOWDISCUSSIONVIEWINSIDE',
+            '/mod/moodleoverflow/discussion.php?d=$1#$2',
+            ['moodleoverflow_discussion', 'moodleoverflow_post']
+        );
 
         return $rules;
-
     }
 
     /**
@@ -102,49 +107,134 @@ public static function define_decode_rules() {
     public static function define_restore_log_rules() {
         $rules = [];
 
-        $rules[] = new restore_log_rule('moodleoverflow', 'add',
-            'view.php?id={course_module}', '{moodleoverflow}');
-        $rules[] = new restore_log_rule('moodleoverflow', 'update',
-            'view.php?id={course_module}', '{moodleoverflow}');
-        $rules[] = new restore_log_rule('moodleoverflow', 'view',
-            'view.php?id={course_module}', '{moodleoverflow}');
-        $rules[] = new restore_log_rule('moodleoverflow', 'view moodleoverflow',
-            'view.php?id={course_module}', '{moodleoverflow}');
-        $rules[] = new restore_log_rule('moodleoverflow', 'mark read',
-            'view.php?f={moodleoverflow}', '{moodleoverflow}');
-        $rules[] = new restore_log_rule('moodleoverflow', 'start tracking',
-            'view.php?f={moodleoverflow}', '{moodleoverflow}');
-        $rules[] = new restore_log_rule('moodleoverflow', 'stop tracking',
-            'view.php?f={moodloeoverflow}', '{moodleoverflow}');
-        $rules[] = new restore_log_rule('moodleoverflow', 'subscribe',
-            'view.php?f={moodleoverflow}', '{moodleoverflow}');
-        $rules[] = new restore_log_rule('moodleoverflow', 'unsubscribe',
-            'view.php?f={moodleoverflow}', '{moodleoverflow}');
-        $rules[] = new restore_log_rule('moodleoverflow', 'subscriber',
-            'subscribers.php?id={moodleoverflow}', '{moodleoverflow}');
-        $rules[] = new restore_log_rule('moodleoverflow', 'subscribers',
-            'subscribers.php?id={moodleoverflow}', '{moodleoverflow}');
-        $rules[] = new restore_log_rule('moodleoverflow', 'view subscribers',
-            'subscribers.php?id={moodleoverflow}', '{moodleoverflow}');
-        $rules[] = new restore_log_rule('moodleoverflow', 'add discussion',
-            'discussion.php?d={moodleoverflow_discussion}', '{moodleoverflow_discussion}');
-        $rules[] = new restore_log_rule('moodleoverflow', 'view discussion',
-            'discussion.php?d={moodleoverflow_discussion}', '{moodleoverflow_discussion}');
-        $rules[] = new restore_log_rule('moodleoverflow', 'move discussion',
-            'discussion.php?d={moodleoverflow_discussion}', '{moodleoverflow_discussion}');
-        $rules[] = new restore_log_rule('moodleoverflow', 'delete discussi',
-            'view.php?id={course_module}', '{moodleoverflow}',
-            null, 'delete discussion');
-        $rules[] = new restore_log_rule('moodleoverflow', 'delete discussion',
-            'view.php?id={course_module}', '{moodleoverflow}');
-        $rules[] = new restore_log_rule('moodleoverflow', 'add post',
-            'discussion.php?d={moodleoverflow_discussion}&parent={moodleoverflow_post}', '{moodleoverflow_post}');
-        $rules[] = new restore_log_rule('moodleoverflow', 'update post',
-            'discussion.php?d={moodleoverflow_discussion}&parent={moodleoverflow_post}', '{moodleoverflow_post}');
-        $rules[] = new restore_log_rule('moodleoverflow', 'prune post',
-            'discussion.php?d={moodleoverflow_discussion}', '{moodleoverflow_post}');
-        $rules[] = new restore_log_rule('moodleoverflow', 'delete post',
-            'discussion.php?d={moodleoverflow_discussion}', '[post]');
+        $rules[] = new restore_log_rule(
+            'moodleoverflow',
+            'add',
+            'view.php?id={course_module}',
+            '{moodleoverflow}'
+        );
+        $rules[] = new restore_log_rule(
+            'moodleoverflow',
+            'update',
+            'view.php?id={course_module}',
+            '{moodleoverflow}'
+        );
+        $rules[] = new restore_log_rule(
+            'moodleoverflow',
+            'view',
+            'view.php?id={course_module}',
+            '{moodleoverflow}'
+        );
+        $rules[] = new restore_log_rule(
+            'moodleoverflow',
+            'view moodleoverflow',
+            'view.php?id={course_module}',
+            '{moodleoverflow}'
+        );
+        $rules[] = new restore_log_rule(
+            'moodleoverflow',
+            'mark read',
+            'view.php?f={moodleoverflow}',
+            '{moodleoverflow}'
+        );
+        $rules[] = new restore_log_rule(
+            'moodleoverflow',
+            'start tracking',
+            'view.php?f={moodleoverflow}',
+            '{moodleoverflow}'
+        );
+        $rules[] = new restore_log_rule(
+            'moodleoverflow',
+            'stop tracking',
+            'view.php?f={moodloeoverflow}',
+            '{moodleoverflow}'
+        );
+        $rules[] = new restore_log_rule(
+            'moodleoverflow',
+            'subscribe',
+            'view.php?f={moodleoverflow}',
+            '{moodleoverflow}'
+        );
+        $rules[] = new restore_log_rule(
+            'moodleoverflow',
+            'unsubscribe',
+            'view.php?f={moodleoverflow}',
+            '{moodleoverflow}'
+        );
+        $rules[] = new restore_log_rule(
+            'moodleoverflow',
+            'subscriber',
+            'subscribers.php?id={moodleoverflow}',
+            '{moodleoverflow}'
+        );
+        $rules[] = new restore_log_rule(
+            'moodleoverflow',
+            'subscribers',
+            'subscribers.php?id={moodleoverflow}',
+            '{moodleoverflow}'
+        );
+        $rules[] = new restore_log_rule(
+            'moodleoverflow',
+            'view subscribers',
+            'subscribers.php?id={moodleoverflow}',
+            '{moodleoverflow}'
+        );
+        $rules[] = new restore_log_rule(
+            'moodleoverflow',
+            'add discussion',
+            'discussion.php?d={moodleoverflow_discussion}',
+            '{moodleoverflow_discussion}'
+        );
+        $rules[] = new restore_log_rule(
+            'moodleoverflow',
+            'view discussion',
+            'discussion.php?d={moodleoverflow_discussion}',
+            '{moodleoverflow_discussion}'
+        );
+        $rules[] = new restore_log_rule(
+            'moodleoverflow',
+            'move discussion',
+            'discussion.php?d={moodleoverflow_discussion}',
+            '{moodleoverflow_discussion}'
+        );
+        $rules[] = new restore_log_rule(
+            'moodleoverflow',
+            'delete discussi',
+            'view.php?id={course_module}',
+            '{moodleoverflow}',
+            null,
+            'delete discussion'
+        );
+        $rules[] = new restore_log_rule(
+            'moodleoverflow',
+            'delete discussion',
+            'view.php?id={course_module}',
+            '{moodleoverflow}'
+        );
+        $rules[] = new restore_log_rule(
+            'moodleoverflow',
+            'add post',
+            'discussion.php?d={moodleoverflow_discussion}&parent={moodleoverflow_post}',
+            '{moodleoverflow_post}'
+        );
+        $rules[] = new restore_log_rule(
+            'moodleoverflow',
+            'update post',
+            'discussion.php?d={moodleoverflow_discussion}&parent={moodleoverflow_post}',
+            '{moodleoverflow_post}'
+        );
+        $rules[] = new restore_log_rule(
+            'moodleoverflow',
+            'prune post',
+            'discussion.php?d={moodleoverflow_discussion}',
+            '{moodleoverflow_post}'
+        );
+        $rules[] = new restore_log_rule(
+            'moodleoverflow',
+            'delete post',
+            'discussion.php?d={moodleoverflow_discussion}',
+            '[post]'
+        );
 
         return $rules;
     }
diff --git a/backup/moodle2/restore_moodleoverflow_stepslib.php b/backup/moodle2/restore_moodleoverflow_stepslib.php
index 590a37f886a..3ef49245c19 100644
--- a/backup/moodle2/restore_moodleoverflow_stepslib.php
+++ b/backup/moodle2/restore_moodleoverflow_stepslib.php
@@ -32,7 +32,6 @@
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 class restore_moodleoverflow_activity_structure_step extends restore_activity_structure_step {
-
     /**
      * Defines structure of path elements to be processed during the restore.
      *
@@ -45,20 +44,34 @@ protected function define_structure() {
 
         $paths[] = new restore_path_element('moodleoverflow', '/activity/moodleoverflow');
         if ($userinfo) {
-            $paths[] = new restore_path_element('moodleoverflow_discussion',
-                '/activity/moodleoverflow/discussions/discussion');
-            $paths[] = new restore_path_element('moodleoverflow_post',
-                '/activity/moodleoverflow/discussions/discussion/posts/post');
-            $paths[] = new restore_path_element('moodleoverflow_discuss_sub',
-                '/activity/moodleoverflow/discussions/discussion/discuss_subs/discuss_sub');
-            $paths[] = new restore_path_element('moodleoverflow_rating',
-                '/activity/moodleoverflow/discussions/discussion/posts/post/ratings/rating');
-            $paths[] = new restore_path_element('moodleoverflow_subscription',
-                '/activity/moodleoverflow/subscriptions/subscription');
-            $paths[] = new restore_path_element('moodleoverflow_read',
-                '/activity/moodleoverflow/readposts/read');
-            $paths[] = new restore_path_element('moodleoverflow_track',
-                '/activity/moodleoverflow/tracking/track');
+            $paths[] = new restore_path_element(
+                'moodleoverflow_discussion',
+                '/activity/moodleoverflow/discussions/discussion'
+            );
+            $paths[] = new restore_path_element(
+                'moodleoverflow_post',
+                '/activity/moodleoverflow/discussions/discussion/posts/post'
+            );
+            $paths[] = new restore_path_element(
+                'moodleoverflow_discuss_sub',
+                '/activity/moodleoverflow/discussions/discussion/discuss_subs/discuss_sub'
+            );
+            $paths[] = new restore_path_element(
+                'moodleoverflow_rating',
+                '/activity/moodleoverflow/discussions/discussion/posts/post/ratings/rating'
+            );
+            $paths[] = new restore_path_element(
+                'moodleoverflow_subscription',
+                '/activity/moodleoverflow/subscriptions/subscription'
+            );
+            $paths[] = new restore_path_element(
+                'moodleoverflow_read',
+                '/activity/moodleoverflow/readposts/read'
+            );
+            $paths[] = new restore_path_element(
+                'moodleoverflow_track',
+                '/activity/moodleoverflow/tracking/track'
+            );
         }
 
         // Return the paths wrapped into standard activity structure.
@@ -178,7 +191,6 @@ protected function process_moodleoverflow_subscription($data) {
 
         $newitemid = $DB->insert_record('moodleoverflow_subscriptions', $data);
         $this->set_mapping('moodleoverflow_subscription', $oldid, $newitemid, true);
-
     }
 
     /**
diff --git a/classes/anonymous.php b/classes/anonymous.php
index 0c7de5b5b8f..d0072efa092 100644
--- a/classes/anonymous.php
+++ b/classes/anonymous.php
@@ -32,7 +32,6 @@
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 class anonymous {
-
     /**
      * Used if nothing is anonymous.
      */
@@ -86,8 +85,11 @@ public static function get_userid_mapping($moodleoverflow, $discussionid) {
         }
         if ($moodleoverflow->anonymous == self::QUESTION_ANONYMOUS) {
             return [
-                $DB->get_field('moodleoverflow_posts', 'userid',
-                    ['parent' => 0, 'discussion' => $discussionid]) => get_string('questioner', 'mod_moodleoverflow'),
+                $DB->get_field(
+                    'moodleoverflow_posts',
+                    'userid',
+                    ['parent' => 0, 'discussion' => $discussionid]
+                ) => get_string('questioner', 'mod_moodleoverflow'),
             ];
         }
 
@@ -96,7 +98,9 @@ public static function get_userid_mapping($moodleoverflow, $discussionid) {
             'FROM {moodleoverflow_posts} ' .
             'WHERE discussion = :discussion ' .
             'GROUP BY userid ' .
-            'ORDER BY MIN(created) ASC;', ['discussion' => $discussionid]);
+            'ORDER BY MIN(created) ASC;',
+            ['discussion' => $discussionid]
+        );
 
         $mapping = [];
         $questioner = array_shift($userids);
@@ -108,5 +112,4 @@ public static function get_userid_mapping($moodleoverflow, $discussionid) {
         }
         return $mapping;
     }
-
 }
diff --git a/classes/capabilities.php b/classes/capabilities.php
index 581fe7624a6..fe45f94ab08 100644
--- a/classes/capabilities.php
+++ b/classes/capabilities.php
@@ -34,7 +34,6 @@
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 class capabilities {
-
     /** capability add instance */
     const ADD_INSTANCE = 'mod/moodleoverflow:addinstance';
 
@@ -100,5 +99,4 @@ public static function has(string $capability, context $context, $userid = null)
 
         return self::$cache[$key];
     }
-
 }
diff --git a/classes/discussion/discussion.php b/classes/discussion/discussion.php
index bbc99a97773..6ba285a0f54 100644
--- a/classes/discussion/discussion.php
+++ b/classes/discussion/discussion.php
@@ -27,7 +27,6 @@
 
 // Import namespace from the locallib, needs a check later which namespaces are really needed.
 use mod_moodleoverflow\anonymous;
-
 // Important namespaces.
 use mod_moodleoverflow\readtracking;
 use mod_moodleoverflow\review;
@@ -51,7 +50,6 @@
  * Accessing these functions directly without the checks from the post control could lead to serious errors.
  */
 class discussion {
-
     /** @var int The discussion ID */
     private $id;
 
@@ -107,8 +105,17 @@ class discussion {
      * @param int   $timestart   The course ID.
      * @param int   $usermodified   The course ID.
      */
-    public function __construct($id, $course, $moodleoverflow, $name, $firstpost,
-                                $userid, $timemodified, $timestart, $usermodified) {
+    public function __construct(
+        $id,
+        $course,
+        $moodleoverflow,
+        $name,
+        $firstpost,
+        $userid,
+        $timemodified,
+        $timestart,
+        $usermodified
+    ) {
         $this->id = $id;
         $this->course = $course;
         $this->moodleoverflow = $moodleoverflow;
@@ -195,8 +202,16 @@ public static function from_record($record) {
      *
      * @return object discussion object without id.
      */
-    public static function construct_without_id($course, $moodleoverflow, $name, $firstpost,
-                                       $userid, $timemodified, $timestart, $usermodified) {
+    public static function construct_without_id(
+        $course,
+        $moodleoverflow,
+        $name,
+        $firstpost,
+        $userid,
+        $timemodified,
+        $timestart,
+        $usermodified
+    ) {
         $id = null;
         $instance = new self($id, $course, $moodleoverflow, $name, $firstpost, $userid, $timemodified, $timestart, $usermodified);
         return $instance;
@@ -216,8 +231,20 @@ public function moodleoverflow_add_discussion($prepost) {
         $this->id = $DB->insert_record('moodleoverflow_discussions', $this->build_db_object());
 
         // Create the first/parent post for the new discussion and add it do the DB.
-        $post = post::construct_without_id($this->id, 0, $prepost->userid, $prepost->timenow, $prepost->timenow, $prepost->message,
-                                           $prepost->messageformat, "", 0, $prepost->reviewed, null, $prepost->formattachments);
+        $post = post::construct_without_id(
+            $this->id,
+            0,
+            $prepost->userid,
+            $prepost->timenow,
+            $prepost->timenow,
+            $prepost->message,
+            $prepost->messageformat,
+            "",
+            0,
+            $prepost->reviewed,
+            null,
+            $prepost->formattachments
+        );
         // Add it to the DB and save the id of the first/parent post.
         $this->firstpost = $post->moodleoverflow_add_new_post();
 
@@ -285,7 +312,6 @@ public function moodleoverflow_delete_discussion($prepost) {
             // The discussion has been deleted.
             $transaction->allow_commit();
             return true;
-
         } catch (Exception $e) {
             $transaction->rollback($e);
         }
@@ -305,9 +331,20 @@ public function moodleoverflow_add_post_to_discussion($prepost) {
         $this->posts_check();
 
         // Create the post that will be added to the new discussion.
-        $post = post::construct_without_id($this->id, $prepost->parentid, $prepost->userid, $prepost->timenow, $prepost->timenow,
-                                           $prepost->message, $prepost->messageformat, "", 0, $prepost->reviewed, null,
-                                           $prepost->formattachments);
+        $post = post::construct_without_id(
+            $this->id,
+            $prepost->parentid,
+            $prepost->userid,
+            $prepost->timenow,
+            $prepost->timenow,
+            $prepost->message,
+            $prepost->messageformat,
+            "",
+            0,
+            $prepost->reviewed,
+            null,
+            $prepost->formattachments
+        );
         // Add the post to the DB.
         $postid = $post->moodleoverflow_add_new_post();
 
@@ -536,8 +573,13 @@ public function get_coursemodule() {
         $this->existence_check();
 
         if (empty($this->cmobject)) {
-            if (!$this->cmobject = $DB->get_coursemodule_from_instance('moodleoverflow', $this->get_moodleoverflow()->id,
-                                                                                         $this->get_moodleoverflow()->course)) {
+            if (
+                !$this->cmobject = $DB->get_coursemodule_from_instance(
+                    'moodleoverflow',
+                    $this->get_moodleoverflow()->id,
+                    $this->get_moodleoverflow()->course
+                )
+            ) {
                 throw new \moodle_exception('invalidcoursemodule');
             }
         }
diff --git a/classes/event/course_module_viewed.php b/classes/event/course_module_viewed.php
index 9e807e47220..70b4db7c349 100644
--- a/classes/event/course_module_viewed.php
+++ b/classes/event/course_module_viewed.php
@@ -35,7 +35,6 @@
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 class course_module_viewed extends \core\event\course_module_viewed {
-
     /**
      * Initialize the event
      */
diff --git a/classes/event/discussion_created.php b/classes/event/discussion_created.php
index fd59baee365..bf06a7b0788 100644
--- a/classes/event/discussion_created.php
+++ b/classes/event/discussion_created.php
@@ -67,5 +67,4 @@ public function get_description() {
     public static function get_name() {
         return get_string('eventdiscussioncreated', 'mod_moodleoverflow');
     }
-
 }
diff --git a/classes/event/discussion_deleted.php b/classes/event/discussion_deleted.php
index d0abdfb3805..7f52e4c1110 100644
--- a/classes/event/discussion_deleted.php
+++ b/classes/event/discussion_deleted.php
@@ -38,7 +38,6 @@
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 class discussion_deleted extends \core\event\base {
-
     /**
      * Init method.
      *
@@ -69,4 +68,3 @@ public static function get_name() {
         return get_string('eventdiscussiondeleted', 'mod_moodleoverflow');
     }
 }
-
diff --git a/classes/event/discussion_subscription_created.php b/classes/event/discussion_subscription_created.php
index 5dfd3c7bea7..6ae0e049b50 100644
--- a/classes/event/discussion_subscription_created.php
+++ b/classes/event/discussion_subscription_created.php
@@ -68,5 +68,4 @@ public function get_description() {
     public static function get_name() {
         return get_string('eventdiscussionsubscriptioncreated', 'mod_moodleoverflow');
     }
-
 }
diff --git a/classes/event/discussion_viewed.php b/classes/event/discussion_viewed.php
index 4f5996aee9b..69e72cdd319 100644
--- a/classes/event/discussion_viewed.php
+++ b/classes/event/discussion_viewed.php
@@ -32,7 +32,6 @@
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 class discussion_viewed extends \core\event\base {
-
     /**
      * Init method.
      *
@@ -63,4 +62,3 @@ public static function get_name() {
         return get_string('eventdiscussionviewed', 'mod_moodleoverflow');
     }
 }
-
diff --git a/classes/event/post_deleted.php b/classes/event/post_deleted.php
index 9f3ab2bb628..13fa43f08fc 100644
--- a/classes/event/post_deleted.php
+++ b/classes/event/post_deleted.php
@@ -68,5 +68,4 @@ public function get_description() {
     public static function get_name() {
         return get_string('eventpostdeleted', 'mod_moodleoverflow');
     }
-
 }
diff --git a/classes/event/rating_created.php b/classes/event/rating_created.php
index d05a2c83144..656162211cc 100644
--- a/classes/event/rating_created.php
+++ b/classes/event/rating_created.php
@@ -32,7 +32,6 @@
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 class rating_created extends \core\event\base {
-
     /**
      * Init method.
      *
diff --git a/classes/event/rating_deleted.php b/classes/event/rating_deleted.php
index b20e75df656..c75f2061130 100644
--- a/classes/event/rating_deleted.php
+++ b/classes/event/rating_deleted.php
@@ -32,7 +32,6 @@
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 class rating_deleted extends \core\event\base {
-
     /**
      * Init method.
      *
diff --git a/classes/event/rating_updated.php b/classes/event/rating_updated.php
index 5fd74d66b7a..533744e0fb7 100644
--- a/classes/event/rating_updated.php
+++ b/classes/event/rating_updated.php
@@ -32,7 +32,6 @@
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 class rating_updated extends \core\event\base {
-
     /**
      * Init method.
      *
diff --git a/classes/event/readtracking_disabled.php b/classes/event/readtracking_disabled.php
index 360321ca812..ee5ba809aae 100644
--- a/classes/event/readtracking_disabled.php
+++ b/classes/event/readtracking_disabled.php
@@ -38,7 +38,6 @@
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 class readtracking_disabled extends \core\event\base {
-
     /**
      * Init method.
      *
diff --git a/classes/event/readtracking_enabled.php b/classes/event/readtracking_enabled.php
index afe4f16449e..e12e914f3c8 100644
--- a/classes/event/readtracking_enabled.php
+++ b/classes/event/readtracking_enabled.php
@@ -38,7 +38,6 @@
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 class readtracking_enabled extends \core\event\base {
-
     /**
      * Init method.
      *
diff --git a/classes/event/subscription_created.php b/classes/event/subscription_created.php
index ec858da3bf8..a26af5357fd 100644
--- a/classes/event/subscription_created.php
+++ b/classes/event/subscription_created.php
@@ -67,5 +67,4 @@ public function get_description() {
     public static function get_name() {
         return get_string('eventsubscriptioncreated', 'mod_moodleoverflow');
     }
-
 }
diff --git a/classes/event/subscription_deleted.php b/classes/event/subscription_deleted.php
index 8544e755770..f61263157d8 100644
--- a/classes/event/subscription_deleted.php
+++ b/classes/event/subscription_deleted.php
@@ -67,5 +67,4 @@ public function get_description() {
     public static function get_name() {
         return get_string('eventsubscriptiondeleted', 'mod_moodleoverflow');
     }
-
 }
diff --git a/classes/manager/mail_manager.php b/classes/manager/mail_manager.php
index 4fe9c432946..44a1124b597 100644
--- a/classes/manager/mail_manager.php
+++ b/classes/manager/mail_manager.php
@@ -115,13 +115,27 @@ public static function moodleoverflow_send_mails(): bool {
 
             // Fill the caches with objects if needed.
             // Add additional information that were not retrievable from the database to the objects if needed.
-            self::moodleoverflow_update_mail_caches($record, $coursemodules, $courses, $moodleoverflows,
-                $discussions, $posts, $authors, $recipients);
+            self::moodleoverflow_update_mail_caches(
+                $record,
+                $coursemodules,
+                $courses,
+                $moodleoverflows,
+                $discussions,
+                $posts,
+                $authors,
+                $recipients
+            );
 
             // Filter records that are not getting mailed.
             // Check if the user can see the post.
-            if (!moodleoverflow_user_can_see_post($moodleoverflows[$record->moodleoverflowid], $discussions[$record->discussionid],
-                $posts[$record->postid], $coursemodules[$record->cmid])) {
+            if (
+                !moodleoverflow_user_can_see_post(
+                    $moodleoverflows[$record->moodleoverflowid],
+                    $discussions[$record->discussionid],
+                    $posts[$record->postid],
+                    $coursemodules[$record->cmid]
+                )
+            ) {
                 continue;
             }
 
@@ -183,8 +197,11 @@ public static function moodleoverflow_send_mails(): bool {
             // The email object is build. Now build all data that is needed for the event that really send the mail.
 
             // Build post subject.
-            $subject = html_to_text(get_string('postmailsubject', 'moodleoverflow',
-                                    ['subject' => $email->get_subject(), 'courseshortname' => $email->get_coursename()]), 0);
+            $subject = html_to_text(get_string(
+                'postmailsubject',
+                'moodleoverflow',
+                ['subject' => $email->get_subject(), 'courseshortname' => $email->get_coursename()]
+            ), 0);
 
             // Finally: send the notification mail.
             $userto = $recipients[$record->usertoid];
@@ -332,9 +349,16 @@ public static function moodleoverflow_get_unmailed_posts($starttime, $endtime):
      *
      * @return void
      */
-    public static function moodleoverflow_update_mail_caches(object $record, array &$coursemodules, array &$courses,
-                                                             array &$moodleoverflows, array  &$discussions, array &$posts,
-                                                             array &$authors, array &$recipients ): void {
+    public static function moodleoverflow_update_mail_caches(
+        object $record,
+        array &$coursemodules,
+        array &$courses,
+        array &$moodleoverflows,
+        array &$discussions,
+        array &$posts,
+        array &$authors,
+        array &$recipients
+    ): void {
         // Define cache types and their corresponding record properties.
         $cachetypes = [
             'coursemodules' => ['id' => 'cmid', 'groupingid' => 'cmgroupingid'],
@@ -390,8 +414,10 @@ public static function moodleoverflow_process_maildigest_record(object $data): v
         global $DB;
         // LEARNWEB-TODO: Rename database table attribute names. Rethink the table structure. What should the mail have?
         // If the record exists, update it. If not, insert a new record.
-        if ($dbrecord = $DB->get_record('moodleoverflow_mail_info', ['userid' => $data->usertoid, 'courseid' => $data->courseid,
-                'forumid' => $data->moodleoverflowid, 'forumdiscussionid' => $data->discussionid, ], 'numberofposts, id')) {
+        if (
+            $dbrecord = $DB->get_record('moodleoverflow_mail_info', ['userid' => $data->usertoid, 'courseid' => $data->courseid,
+                'forumid' => $data->moodleoverflowid, 'forumdiscussionid' => $data->discussionid, ], 'numberofposts, id')
+        ) {
             $dbrecord->numberofposts++;
             $DB->update_record('moodleoverflow_mail_info', $dbrecord);
         } else {
@@ -433,6 +459,5 @@ public static function moodleoverflow_mark_old_posts_as_mailed($endtime) {
                 WHERE (created < :endtime) AND mailed IN (:mailedpending, :mailedreviewsent) AND reviewed = 1";
 
         return $DB->execute($sql, $params);
-
     }
 }
diff --git a/classes/observer.php b/classes/observer.php
index 8dc215b203c..44aff1b9aba 100644
--- a/classes/observer.php
+++ b/classes/observer.php
@@ -28,7 +28,6 @@
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 class mod_moodleoverflow_observer {
-
     /**
      * Triggered via user_enrolment_deleted event.
      *
@@ -42,7 +41,6 @@ public static function user_enrolment_deleted(\core\event\user_enrolment_deleted
 
         // Check if the user was enrolled.
         if ($cp->lastenrol) {
-
             // Get the moodleoverflow instances from which the user was unenrolled from.
             $moodleoverflows = $DB->get_records('moodleoverflow', ['course' => $cp->courseid], '', 'id');
 
@@ -52,7 +50,7 @@ public static function user_enrolment_deleted(\core\event\user_enrolment_deleted
             }
 
             // Get the sql parameters for the moodleoverflow instances and add the user ID.
-            list($select, $params) = $DB->get_in_or_equal(array_keys($moodleoverflows), SQL_PARAMS_NAMED);
+            [$select, $params] = $DB->get_in_or_equal(array_keys($moodleoverflows), SQL_PARAMS_NAMED);
             $params['userid'] = $cp->userid;
 
             // Delete all records that are connected to those moodleoverflow instances.
@@ -100,7 +98,6 @@ public static function role_assigned(\core\event\role_assigned $event) {
 
         // Loop through all moodleoverflows.
         foreach ($moodleoverflows as $moodleoverflow) {
-
             // If user doesn't have allowforcesubscribe capability then don't subscribe.
 
             // Retrieve the context of the module.
@@ -128,7 +125,6 @@ public static function course_module_created(\core\event\course_module_created $
 
         // Check if a moodleoverflow instance was created.
         if ($event->other['modulename'] === 'moodleoverflow') {
-
             // Require the library.
             require_once($CFG->dirroot . '/mod/moodleoverflow/lib.php');
 
diff --git a/classes/output/email/renderer.php b/classes/output/email/renderer.php
index fdf8ef3f75e..6c812fc1022 100644
--- a/classes/output/email/renderer.php
+++ b/classes/output/email/renderer.php
@@ -37,7 +37,6 @@
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 class renderer extends \mod_moodleoverflow_renderer {
-
     /**
      * The template name for this renderer.
      *
@@ -58,9 +57,13 @@ public function moodleoverflow_email_template() {
     public function format_message_text($cm, $post) {
         // Convert the message.
         $message = file_rewrite_pluginfile_urls(
-            $post->message, 'pluginfile.php',
+            $post->message,
+            'pluginfile.php',
             \context_module::instance($cm->id)->id,
-            'mod_moodleoverflow', 'post', $post->id);
+            'mod_moodleoverflow',
+            'post',
+            $post->id
+        );
 
         // Initiate some options.
         $options = new \stdClass();
diff --git a/classes/output/email/renderer_textemail.php b/classes/output/email/renderer_textemail.php
index 4d8c72d29b2..da7e574d16e 100644
--- a/classes/output/email/renderer_textemail.php
+++ b/classes/output/email/renderer_textemail.php
@@ -36,7 +36,6 @@
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 class renderer_textemail extends renderer {
-
     /**
      * The template name for this renderer.
      *
@@ -56,9 +55,14 @@ public function moodleoverflow_email_template() {
      */
     public function format_message_text($cm, $post) {
         // Format the text.
-        $message = file_rewrite_pluginfile_urls($post->message, 'pluginfile.php',
+        $message = file_rewrite_pluginfile_urls(
+            $post->message,
+            'pluginfile.php',
             \context_module::instance($cm->id)->id,
-            'mod_moodleoverflow', 'post', $post->id);
+            'mod_moodleoverflow',
+            'post',
+            $post->id
+        );
 
         // Print the message.
         return format_text_email($message, $post->messageformat);
diff --git a/classes/output/moodleoverflow_email.php b/classes/output/moodleoverflow_email.php
index f5c57f7d54b..13d1d90b92d 100644
--- a/classes/output/moodleoverflow_email.php
+++ b/classes/output/moodleoverflow_email.php
@@ -35,7 +35,6 @@
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 class moodleoverflow_email implements \renderable, \templatable {
-
     /**
      * The course that the moodleoverflow post is in.
      *
@@ -316,7 +315,8 @@ public function get_coursename() {
     public function get_courselink() {
         $link = new \moodle_url(
         // Posts are viewed on the topic.
-            '/course/view.php', [
+            '/course/view.php',
+            [
                 'id' => $this->course->id,
             ]
         );
@@ -420,7 +420,8 @@ public function is_firstpost() {
      */
     public function get_replylink() {
         return new \moodle_url(
-            '/mod/moodleoverflow/post.php', [
+            '/mod/moodleoverflow/post.php',
+            [
                 'reply' => $this->post->id,
             ]
         );
@@ -432,12 +433,17 @@ public function get_replylink() {
      * @return string
      */
     public function get_unsubscribemoodleoverflowlink() {
-        if (!subscriptions::is_subscribable($this->moodleoverflow,
-                \context_module::instance($this->cm->id))) {
+        if (
+            !subscriptions::is_subscribable(
+                $this->moodleoverflow,
+                \context_module::instance($this->cm->id)
+            )
+        ) {
             return null;
         }
         $link = new \moodle_url(
-            '/mod/moodleoverflow/subscribe.php', [
+            '/mod/moodleoverflow/subscribe.php',
+            [
                 'id' => $this->moodleoverflow->id,
             ]
         );
@@ -465,7 +471,8 @@ public function get_parentpostlink() {
     protected function get_discussionurl() {
         return new \moodle_url(
         // Posts are viewed on the topic.
-            '/mod/moodleoverflow/discussion.php', [
+            '/mod/moodleoverflow/discussion.php',
+            [
                 // Within a discussion.
                 'd' => $this->discussion->id,
             ]
@@ -491,7 +498,8 @@ public function get_discussionlink() {
     public function get_moodleoverflowindexlink() {
         $link = new \moodle_url(
         // Posts are viewed on the topic.
-            '/mod/moodleoverflow/index.php', [
+            '/mod/moodleoverflow/index.php',
+            [
                 'id' => $this->course->id,
             ]
         );
@@ -507,7 +515,8 @@ public function get_moodleoverflowindexlink() {
     public function get_moodleoverflowviewlink() {
         $link = new \moodle_url(
         // Posts are viewed on the topic.
-            '/mod/moodleoverflow/view.php', [
+            '/mod/moodleoverflow/view.php',
+            [
                 'm' => $this->moodleoverflow->id,
             ]
         );
@@ -526,7 +535,8 @@ public function get_authorlink() {
         }
 
         $link = new \moodle_url(
-            '/user/view.php', [
+            '/user/view.php',
+            [
                 'id' => $this->post->userid,
                 'course' => $this->course->id,
             ]
diff --git a/classes/post/post.php b/classes/post/post.php
index 942d5ddbd8d..da379362468 100644
--- a/classes/post/post.php
+++ b/classes/post/post.php
@@ -56,7 +56,6 @@
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 class post {
-
     // Attributes. The most important attributes are private and can only be changed by internal functions.
     // Other attributes can be accessed directly.
 
@@ -134,8 +133,21 @@ class post {
      * @param int       $timereviewed       The time where the post was reviewed
      * @param object    $formattachments    Information about attachments of the post_form
      */
-    public function __construct($id, $discussion, $parent, $userid, $created, $modified, $message,
-                                $messageformat, $attachment, $mailed, $reviewed, $timereviewed, $formattachments = false) {
+    public function __construct(
+        $id,
+        $discussion,
+        $parent,
+        $userid,
+        $created,
+        $modified,
+        $message,
+        $messageformat,
+        $attachment,
+        $mailed,
+        $reviewed,
+        $timereviewed,
+        $formattachments = false
+    ) {
         $this->id = $id;
         $this->discussion = $discussion;
         $this->parent = $parent;
@@ -218,8 +230,20 @@ public static function from_record($record): post {
             $timereviewed = $record->timereviewed;
         }
 
-        return new self($id, $discussion, $parent, $userid, $created, $modified, $message, $messageformat, $attachment, $mailed,
-                        $reviewed, $timereviewed);
+        return new self(
+            $id,
+            $discussion,
+            $parent,
+            $userid,
+            $created,
+            $modified,
+            $message,
+            $messageformat,
+            $attachment,
+            $mailed,
+            $reviewed,
+            $timereviewed
+        );
     }
 
     /**
@@ -240,11 +264,36 @@ public static function from_record($record): post {
      *
      * @return object post object without id
      */
-    public static function construct_without_id($discussion, $parent, $userid, $created, $modified, $message,
-                                $messageformat, $attachment, $mailed, $reviewed, $timereviewed, $formattachments = false) {
+    public static function construct_without_id(
+        $discussion,
+        $parent,
+        $userid,
+        $created,
+        $modified,
+        $message,
+        $messageformat,
+        $attachment,
+        $mailed,
+        $reviewed,
+        $timereviewed,
+        $formattachments = false
+    ) {
         $id = null;
-        return new self($id, $discussion, $parent, $userid, $created, $modified, $message, $messageformat, $attachment, $mailed,
-                        $reviewed, $timereviewed, $formattachments);
+        return new self(
+            $id,
+            $discussion,
+            $parent,
+            $userid,
+            $created,
+            $modified,
+            $message,
+            $messageformat,
+            $attachment,
+            $mailed,
+            $reviewed,
+            $timereviewed,
+            $formattachments
+        );
     }
 
     // Post Functions.
@@ -264,8 +313,15 @@ public function moodleoverflow_add_new_post() {
         // Save draft files to permanent file area.
         $context = \context_module::instance($this->get_coursemodule()->id);
         $draftid = file_get_submitted_draft_itemid('introeditor');
-        $this->message = file_save_draft_area_files($draftid, $context->id, 'mod_moodleoverflow', 'post',
-            $this->id, mod_moodleoverflow_post_form::editor_options($context, $this->id), $this->message);
+        $this->message = file_save_draft_area_files(
+            $draftid,
+            $context->id,
+            'mod_moodleoverflow',
+            'post',
+            $this->id,
+            mod_moodleoverflow_post_form::editor_options($context, $this->id),
+            $this->message
+        );
         $DB->update_record('moodleoverflow_posts', $this->build_db_object());
 
         // Update the attachments. This happens after the DB update call, as this function changes the DB record as well.
@@ -328,12 +384,24 @@ public function moodleoverflow_delete_post($deletechildren) {
                 // Delete the attachments.
                 $fs = get_file_storage();
                 $context = \context_module::instance($coursemoduleid);
-                $attachments = $fs->get_area_files($context->id, 'mod_moodleoverflow', 'attachment',
-                    $this->id, "filename", true);
+                $attachments = $fs->get_area_files(
+                    $context->id,
+                    'mod_moodleoverflow',
+                    'attachment',
+                    $this->id,
+                    "filename",
+                    true
+                );
                 foreach ($attachments as $attachment) {
                     // Get file.
-                    $file = $fs->get_file($context->id, 'mod_moodleoverflow', 'attachment', $this->id,
-                        $attachment->get_filepath(), $attachment->get_filename());
+                    $file = $fs->get_file(
+                        $context->id,
+                        'mod_moodleoverflow',
+                        'attachment',
+                        $this->id,
+                        $attachment->get_filepath(),
+                        $attachment->get_filename()
+                    );
                     // Delete it if it exists.
                     if ($file) {
                         $file->delete();
@@ -391,8 +459,15 @@ public function moodleoverflow_edit_post($time, $postmessage, $messageformat, $f
         // Update the message and save draft files to permanent file area.
         $context = \context_module::instance($this->get_coursemodule()->id);
         $draftid = file_get_submitted_draft_itemid('introeditor');
-        $this->message = file_save_draft_area_files($draftid, $context->id, 'mod_moodleoverflow', 'post',
-            $this->id, mod_moodleoverflow_post_form::editor_options($context, $this->id), $postmessage);
+        $this->message = file_save_draft_area_files(
+            $draftid,
+            $context->id,
+            'mod_moodleoverflow',
+            'post',
+            $this->id,
+            mod_moodleoverflow_post_form::editor_options($context, $this->id),
+            $postmessage
+        );
 
         // Update the record in the database.
         $DB->update_record('moodleoverflow_posts', $this->build_db_object());
@@ -453,8 +528,14 @@ public function moodleoverflow_add_attachment() {
         $context = \context_module::instance($this->get_coursemodule()->id);
         $info = file_get_draft_area_info($this->formattachments);
         $present = ($info['filecount'] > 0) ? '1' : '';
-        file_save_draft_area_files($this->formattachments, $context->id, 'mod_moodleoverflow', 'attachment', $this->id,
-                                  \mod_moodleoverflow_post_form::attachment_options($this->get_moodleoverflow()));
+        file_save_draft_area_files(
+            $this->formattachments,
+            $context->id,
+            'mod_moodleoverflow',
+            'attachment',
+            $this->id,
+            \mod_moodleoverflow_post_form::attachment_options($this->get_moodleoverflow())
+        );
         $DB->set_field('moodleoverflow_posts', 'attachment', $present, ['id' => $this->id]);
     }
 
@@ -484,11 +565,20 @@ public function moodleoverflow_get_attachments() {
                 $attachments[$i] = [];
                 $attachments[$i]['filename'] = $file->get_filename();
                 $mimetype = $file->get_mimetype();
-                $iconimage = $OUTPUT->pix_icon(file_file_icon($file),
-                    get_mimetype_description($file), 'moodle',
-                    ['class' => 'icon']);
-                $path = moodle_url::make_pluginfile_url($file->get_contextid(), $file->get_component(), $file->get_filearea(),
-                                                         $file->get_itemid(), $file->get_filepath(), $file->get_filename());
+                $iconimage = $OUTPUT->pix_icon(
+                    file_file_icon($file),
+                    get_mimetype_description($file),
+                    'moodle',
+                    ['class' => 'icon']
+                );
+                $path = moodle_url::make_pluginfile_url(
+                    $file->get_contextid(),
+                    $file->get_component(),
+                    $file->get_filearea(),
+                    $file->get_itemid(),
+                    $file->get_filepath(),
+                    $file->get_filename()
+                );
                 $attachments[$i]['icon'] = $iconimage;
                 $attachments[$i]['filepath'] = $path;
 
diff --git a/classes/post/post_control.php b/classes/post/post_control.php
index d2fb43be86e..513b0648408 100644
--- a/classes/post/post_control.php
+++ b/classes/post/post_control.php
@@ -70,7 +70,6 @@
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 class post_control {
-
     /** @var string the Interaction type, the interactions are:
      * - create (creates a new discussion with a first post)
      * - reply (replies to a existing post, can be an answer or a comment)
@@ -117,17 +116,14 @@ public function detect_interaction(stdClass $urlparameter): void {
             $this->interaction = 'create';
             $this->info->moodleoverflowid = $urlparameter->create;
             $this->build_prepost_create($this->info->moodleoverflowid);
-
         } else if ($urlparameter->edit) {
             $this->interaction = 'edit';
             $this->info->editpostid = $urlparameter->edit;
             $this->build_prepost_edit($this->info->editpostid);
-
         } else if ($urlparameter->reply) {
             $this->interaction = 'reply';
             $this->info->replypostid = $urlparameter->reply;
             $this->build_prepost_reply($this->info->replypostid);
-
         } else if ($urlparameter->delete) {
             $this->interaction = 'delete';
             $this->info->deletepostid = $urlparameter->delete;
@@ -303,18 +299,24 @@ private function build_prepost_edit(int $editpostid): void {
         // as the review class should be refactored with the new way of working with posts.
         $alreadyreviewed = review::should_post_be_reviewed($this->info->relatedpost->get_db_object(), $this->info->moodleoverflow)
                            && $this->info->relatedpost->reviewed;
-        if (($beyondtime || $alreadyreviewed) && !has_capability('mod/moodleoverflow:editanypost',
-                                                                 $this->info->modulecontext)) {
-            throw new moodle_exception('maxtimehaspassed', 'moodleoverflow', '',
-                format_time(get_config('moodleoverflow', 'maxeditingtime')));
+        if (
+            ($beyondtime || $alreadyreviewed) && !has_capability(
+                'mod/moodleoverflow:editanypost',
+                $this->info->modulecontext
+            )
+        ) {
+            throw new moodle_exception(
+                'maxtimehaspassed',
+                'moodleoverflow',
+                '',
+                format_time(get_config('moodleoverflow', 'maxeditingtime'))
+            );
         }
 
         // If the current user is not the one who posted this post.
         if ($this->info->relatedpost->get_userid() != $USER->id) {
-
             // Check if the current user has not the capability to edit any post.
             if (!has_capability('mod/moodleoverflow:editanypost', $this->info->modulecontext)) {
-
                 // Display the error. Capabilities are missing.
                 throw new moodle_exception('cannoteditposts', 'moodleoverflow');
             }
@@ -369,8 +371,10 @@ private function execute_create(object $form): void {
         $this->check_user_can_create_discussion();
 
         // Set the post to not reviewed if questions should be reviewed and the user is not a reviewed themselves.
-        if (review::get_review_level($this->info->moodleoverflow) >= review::QUESTIONS &&
-                !capabilities::has(capabilities::REVIEW_POST, $this->info->modulecontext, $USER->id)) {
+        if (
+            review::get_review_level($this->info->moodleoverflow) >= review::QUESTIONS &&
+                !capabilities::has(capabilities::REVIEW_POST, $this->info->modulecontext, $USER->id)
+        ) {
             $this->prepost->reviewed = 0;
         } else {
             $this->prepost->reviewed = 1;
@@ -380,9 +384,16 @@ private function execute_create(object $form): void {
         $this->prepost->subject = $form->subject;
 
         // Create the discussion object.
-        $discussion = discussion::construct_without_id($this->prepost->courseid, $this->prepost->moodleoverflowid,
-                                                       $this->prepost->subject, 0, $this->prepost->userid,
-                                                       $this->prepost->timenow, $this->prepost->timenow, $this->prepost->userid);
+        $discussion = discussion::construct_without_id(
+            $this->prepost->courseid,
+            $this->prepost->moodleoverflowid,
+            $this->prepost->subject,
+            0,
+            $this->prepost->userid,
+            $this->prepost->timenow,
+            $this->prepost->timenow,
+            $this->prepost->userid
+        );
         if (!$discussion->moodleoverflow_add_discussion($this->prepost)) {
             throw new moodle_exception('couldnotadd', 'moodleoverflow');
         }
@@ -398,9 +409,12 @@ private function execute_create(object $form): void {
         // Subscribe to this thread.
         // Please be aware that in future the use of get_db_object() should be replaced with only $this->info->discussion,
         // as the subscription class should be refactored with the new way of working with posts.
-        subscriptions::moodleoverflow_post_subscription($form, $this->info->moodleoverflow,
-                                                                            $discussion->get_db_object(),
-                                                                            $this->info->modulecontext);
+        subscriptions::moodleoverflow_post_subscription(
+            $form,
+            $this->info->moodleoverflow,
+            $discussion->get_db_object(),
+            $this->info->modulecontext
+        );
 
         // Define the location to redirect the user after successfully posting.
         $redirectto = new moodle_url('/mod/moodleoverflow/view.php', ['m' => $form->moodleoverflow]);
@@ -418,8 +432,10 @@ private function execute_reply(object $form): void {
         $this->check_user_can_create_reply();
 
         // Set to not reviewed, if posts should be reviewed, and user is not a reviewer themselves.
-        if (review::get_review_level($this->info->moodleoverflow) == review::EVERYTHING &&
-                !has_capability('mod/moodleoverflow:reviewpost', \context_module::instance($this->info->cm->id))) {
+        if (
+            review::get_review_level($this->info->moodleoverflow) == review::EVERYTHING &&
+                !has_capability('mod/moodleoverflow:reviewpost', \context_module::instance($this->info->cm->id))
+        ) {
             $this->prepost->reviewed = 0;
         } else {
             $this->prepost->reviewed = 1;
@@ -432,8 +448,11 @@ private function execute_reply(object $form): void {
 
         // The creation was successful.
         $redirectmessage = html_writer::tag('p', get_string("postaddedsuccess", "moodleoverflow"));
-        $redirectmessage .= html_writer::tag('p', get_string("postaddedtimeleft", "moodleoverflow",
-                                              format_time(get_config('moodleoverflow', 'maxeditingtime'))));
+        $redirectmessage .= html_writer::tag('p', get_string(
+            "postaddedtimeleft",
+            "moodleoverflow",
+            format_time(get_config('moodleoverflow', 'maxeditingtime'))
+        ));
 
         // Trigger the post created event.
         $params = ['context' => $this->info->modulecontext, 'objectid' => $newpostid,
@@ -447,15 +466,19 @@ private function execute_reply(object $form): void {
         // Subscribe to this thread.
         // Please be aware that in future the use of build_db_object() should be replaced with only $this->info->discussion,
         // as the subscription class should be refactored with the new way of working with posts.
-        subscriptions::moodleoverflow_post_subscription($form, $this->info->moodleoverflow,
-                                                                             $this->info->discussion->get_db_object(),
-                                                                             $this->info->modulecontext);
+        subscriptions::moodleoverflow_post_subscription(
+            $form,
+            $this->info->moodleoverflow,
+            $this->info->discussion->get_db_object(),
+            $this->info->modulecontext
+        );
 
         // Define the location to redirect the user after successfully posting.
-        $redirectto = new moodle_url('/mod/moodleoverflow/discussion.php',
-                                      ['d' => $this->prepost->discussionid, 'p' => $newpostid]);
+        $redirectto = new moodle_url(
+            '/mod/moodleoverflow/discussion.php',
+            ['d' => $this->prepost->discussionid, 'p' => $newpostid]
+        );
         redirect(\moodleoverflow_go_back_to($redirectto), $redirectmessage, null, \core\output\notification::NOTIFY_SUCCESS);
-
     }
 
     /**
@@ -502,8 +525,10 @@ private function execute_edit(object $form): void {
         $event->trigger();
 
         // Define the location to redirect the user after successfully editing.
-        $redirectto = new moodle_url('/mod/moodleoverflow/discussion.php',
-                                      ['d' => $this->prepost->discussionid, 'p' => $form->edit]);
+        $redirectto = new moodle_url(
+            '/mod/moodleoverflow/discussion.php',
+            ['d' => $this->prepost->discussionid, 'p' => $form->edit]
+        );
         redirect(moodleoverflow_go_back_to($redirectto), $redirectmessage, null, \core\output\notification::NOTIFY_SUCCESS);
     }
 
@@ -518,8 +543,10 @@ public function execute_delete(): void {
 
         // Check if the user has the capability to delete the post.
         $timepassed = time() - $this->info->relatedpost->created;
-        $SESSION->errorreturnurl = new moodle_url('/mod/moodleoverflow/discussion.php',
-                                                  ['d' => $this->info->discussion->get_id()]);
+        $SESSION->errorreturnurl = new moodle_url(
+            '/mod/moodleoverflow/discussion.php',
+            ['d' => $this->info->discussion->get_id()]
+        );
         if (($timepassed > get_config('moodleoverflow', 'maxeditingtime')) && !$this->info->deleteanypost) {
             throw new moodle_exception('cannotdeletepost', 'moodleoverflow');
         }
@@ -574,13 +601,23 @@ public function build_postform(array $pageparams) {
 
         // Prepare the attachments.
         $draftitemid = file_get_submitted_draft_itemid('attachments');
-        file_prepare_draft_area($draftitemid, $this->info->modulecontext->id, 'mod_moodleoverflow', 'attachment',
-                                empty($this->prepost->postid) ? null : $this->prepost->postid,
-                                mod_moodleoverflow_post_form::attachment_options($this->info->moodleoverflow));
+        file_prepare_draft_area(
+            $draftitemid,
+            $this->info->modulecontext->id,
+            'mod_moodleoverflow',
+            'attachment',
+            empty($this->prepost->postid) ? null : $this->prepost->postid,
+            mod_moodleoverflow_post_form::attachment_options($this->info->moodleoverflow)
+        );
 
         // If the post is anonymous, attachments should have an anonymous author when editing the attachment.
-        if ($draftitemid && $this->interaction == 'edit' && anonymous::is_post_anonymous($this->info->discussion,
-                $this->info->moodleoverflow, $this->prepost->userid)) {
+        if (
+            $draftitemid && $this->interaction == 'edit' && anonymous::is_post_anonymous(
+                $this->info->discussion,
+                $this->info->moodleoverflow,
+                $this->prepost->userid
+            )
+        ) {
             $usercontext = \context_user::instance($USER->id);
             $anonymousstr = get_string('anonymous', 'moodleoverflow');
             foreach (get_file_storage()->get_area_files($usercontext->id, 'user', 'draft', $draftitemid) as $file) {
@@ -607,8 +644,11 @@ public function build_postform(array $pageparams) {
             if ($this->prepost->messageformat == FORMAT_HTML) {
                 $data->name = html_writer::tag('a', $CFG->wwwroot . '/user/view.php?id' . $USER->id .
                                                 '&course=' . $this->prepost->courseid . '">' . fullname($USER));
-                $this->prepost->message .= html_writer::tag('p', html_writer::tag('span',
-                             get_string('editedby', 'moodleoverflow', $data), ["class" => "edited"]));
+                $this->prepost->message .= html_writer::tag('p', html_writer::tag(
+                    'span',
+                    get_string('editedby', 'moodleoverflow', $data),
+                    ["class" => "edited"]
+                ));
             } else {
                 $data->name = fullname($USER);
                 $this->prepost->message .= "\n\n(" . get_string('editedby', 'moodleoverflow', $data) . ')';
@@ -634,8 +674,7 @@ public function build_postform(array $pageparams) {
              'discussion' => $this->prepost->discussionid,
              'course' => $this->prepost->courseid,
             ]
-            + $pageparams
-        );
+            + $pageparams);
 
         return $mformpost;
     }
@@ -741,7 +780,7 @@ private function assemble_prepost(): void {
      */
     private function check_interaction($interaction): void {
         if ($this->interaction != $interaction) {
-            throw new moodle_exception('wronginteraction' , 'moodleoverflow');
+            throw new moodle_exception('wronginteraction', 'moodleoverflow');
         }
     }
 
@@ -770,8 +809,13 @@ private function check_course_exists(int $courseid): object {
      * @throws moodle_exception
      */
     private function check_coursemodule_exists(int $moodleoverflowid, int $courseid): object {
-        if (!$cm = get_coursemodule_from_instance('moodleoverflow', $moodleoverflowid,
-                                                                    $courseid)) {
+        if (
+            !$cm = get_coursemodule_from_instance(
+                'moodleoverflow',
+                $moodleoverflowid,
+                $courseid
+            )
+        ) {
             throw new moodle_exception('invalidcoursemodule');
         }
         return $cm;
@@ -890,9 +934,11 @@ private function catch_unenrolled(): void {
             if (enrol_selfenrol_available($this->info->course->id)) {
                 $SESSION->wantsurl = qualified_me();
                 $SESSION->enrolcancel = get_local_referer(false);
-                redirect(new moodle_url('/enrol/index.php',  ['id' => $this->info->course->id,
+                redirect(
+                    new moodle_url('/enrol/index.php', ['id' => $this->info->course->id,
                     'returnurl' => '/mod/moodleoverflow/view.php?m=' . $this->info->moodleoverflow->id, ]),
-                    get_string('youneedtoenrol'));
+                    get_string('youneedtoenrol')
+                );
             }
         }
     }
diff --git a/classes/post_form.php b/classes/post_form.php
index 58212feee88..be610b09d7f 100644
--- a/classes/post_form.php
+++ b/classes/post_form.php
@@ -35,7 +35,6 @@
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 class mod_moodleoverflow_post_form extends moodleform {
-
     /**
      * Form definition.
      *
@@ -59,15 +58,24 @@ public function definition() {
         $modform->addRule('subject', get_string('maximumchars', '', 255), 'maxlength', 255, 'client');
 
         // The message.
-        $modform->addElement('editor', 'message', get_string('message', 'moodleoverflow'), null,
-                             self::editor_options($modcontext, (empty($post->id) ? null : $post->id)));
+        $modform->addElement(
+            'editor',
+            'message',
+            get_string('message', 'moodleoverflow'),
+            null,
+            self::editor_options($modcontext, (empty($post->id) ? null : $post->id))
+        );
         $modform->setType('message', PARAM_RAW);
         $modform->addRule('message', get_string('required'), 'required', null, 'client');
 
         if (moodleoverflow_can_create_attachment($moodleoverflow, $modcontext)) {
-            $modform->addElement('filemanager', 'attachments',
+            $modform->addElement(
+                'filemanager',
+                'attachments',
                 get_string('attachment', 'moodleoverflow'),
-                null, self::attachment_options($moodleoverflow));
+                null,
+                self::attachment_options($moodleoverflow)
+            );
             $modform->addHelpButton('attachments', 'attachment', 'moodleoverflow');
         }
 
diff --git a/classes/privacy/data_export_helper.php b/classes/privacy/data_export_helper.php
index 4e23c43fcab..32a886c4a59 100644
--- a/classes/privacy/data_export_helper.php
+++ b/classes/privacy/data_export_helper.php
@@ -44,7 +44,7 @@ class data_export_helper {
     public static function export_discussion_data($userid, array $mappings) {
         global $DB;
         // Find all of the discussions, and discussion subscriptions for this forum.
-        list($foruminsql, $forumparams) = $DB->get_in_or_equal(array_keys($mappings), SQL_PARAMS_NAMED);
+        [$foruminsql, $forumparams] = $DB->get_in_or_equal(array_keys($mappings), SQL_PARAMS_NAMED);
 
         $sql = "SELECT
                     d.*,
@@ -83,7 +83,9 @@ public static function export_discussion_data($userid, array $mappings) {
             ];
             // Store the discussion content.
             writer::with_context($context)->export_data(
-                static::get_discussion_area($discussion), $discussiondata);
+                static::get_discussion_area($discussion),
+                $discussiondata
+            );
             // Forum discussions do not have any files associately directly with them.
         }
         $discussions->close();
@@ -103,7 +105,7 @@ public static function export_all_posts($userid, array $mappings) {
         global $DB;
 
         // Find all of the posts, and post subscriptions for this forum.
-        list($foruminsql, $forumparams) = $DB->get_in_or_equal(array_keys($mappings), SQL_PARAMS_NAMED);
+        [$foruminsql, $forumparams] = $DB->get_in_or_equal(array_keys($mappings), SQL_PARAMS_NAMED);
 
         $sql = "SELECT
                     p.discussion AS id,
@@ -241,7 +243,12 @@ protected static function export_post_data($userid, \context $context, $postarea
             'author_was_you' => transform::yesno($post->userid == $userid),
         ];
         $postdata->message = writer::with_context($context)->rewrite_pluginfile_urls(
-            $postarea, 'mod_moodleoverflow', 'attachment', $post->id, $post->message);
+            $postarea,
+            'mod_moodleoverflow',
+            'attachment',
+            $post->id,
+            $post->message
+        );
 
         $postdata->message = format_text($postdata->message, $post->messageformat, (object) [
             'para' => false,
@@ -250,7 +257,11 @@ protected static function export_post_data($userid, \context $context, $postarea
 
         // Store the post and the associated files.
         writer::with_context($context)->export_data($postarea, $postdata)->export_area_files(
-            $postarea, 'mod_moodleoverflow', 'attachment', $post->id);
+            $postarea,
+            'mod_moodleoverflow',
+            'attachment',
+            $post->id
+        );
 
         if ($post->userid == $userid) {
             // Store all ratings against this post as the post belongs to the user. All ratings on it are ratings of their content.
@@ -322,7 +333,11 @@ public static function export_subscription_data(\stdClass $forum) {
         if (null !== $forum->subscribed) {
             // The user is subscribed to this forum.
             writer::with_context(\context_module::instance($forum->cmid))->export_metadata(
-                [], 'subscriptionpreference', 1, get_string('privacy:subscribedtoforum', 'mod_moodleoverflow'));
+                [],
+                'subscriptionpreference',
+                1,
+                get_string('privacy:subscribedtoforum', 'mod_moodleoverflow')
+            );
 
             return true;
         }
@@ -352,11 +367,11 @@ protected static function export_discussion_subscription_data(\context_module $c
                     break;
             }
             writer::with_context($context)->export_metadata(
-                    $area,
-                    'subscriptionpreference',
-                    $discussion->preference,
-                    get_string('privacy:discussionsubscriptionpreference', 'mod_moodleoverflow', $a)
-                );
+                $area,
+                'subscriptionpreference',
+                $discussion->preference,
+                get_string('privacy:discussionsubscriptionpreference', 'mod_moodleoverflow', $a)
+            );
 
             return true;
         }
@@ -376,7 +391,11 @@ public static function export_tracking_data(\stdClass $forum) {
         if (null !== $forum->tracked) {
             // The user has a main preference to track all forums, but has opted out of this one.
             writer::with_context(\context_module::instance($forum->cmid))->export_metadata(
-                [], 'trackreadpreference', 0, get_string('privacy:readtrackingdisabled', 'mod_moodleoverflow'));
+                [],
+                'trackreadpreference',
+                0,
+                get_string('privacy:readtrackingdisabled', 'mod_moodleoverflow')
+            );
 
             return true;
         }
@@ -393,7 +412,11 @@ public static function export_tracking_data(\stdClass $forum) {
     public static function export_grade_data(\stdClass $forum) {
         if ($forum->grade) {
             writer::with_context(\context_module::instance($forum->cmid))->export_metadata(
-                    [], 'grade', $forum->grade, get_string('privacy:grade', 'mod_moodleoverflow'));
+                [],
+                'grade',
+                $forum->grade,
+                get_string('privacy:grade', 'mod_moodleoverflow')
+            );
 
             return true;
         }
@@ -416,14 +439,14 @@ protected static function export_read_data(\context_module $context, array $post
                 'lastread' => $post->lastread,
             ];
             writer::with_context($context)->export_metadata(
-                    $postarea,
-                    'postread',
-                    (object) [
+                $postarea,
+                'postread',
+                (object) [
                         'firstread' => $post->firstread,
                         'lastread' => $post->lastread,
                     ],
-                    get_string('privacy:postwasread', 'mod_moodleoverflow', $a)
-                );
+                get_string('privacy:postwasread', 'mod_moodleoverflow', $a)
+            );
 
             return true;
         }
diff --git a/classes/privacy/provider.php b/classes/privacy/provider.php
index c1df6fe1f03..83829b66718 100644
--- a/classes/privacy/provider.php
+++ b/classes/privacy/provider.php
@@ -25,6 +25,7 @@
 namespace mod_moodleoverflow\privacy;
 
 use core_privacy\local\request\approved_userlist;
+use core_privacy\local\request\core_userlist_provider;
 use core_privacy\local\request\userlist;
 use core_privacy\local\metadata\collection;
 use core_privacy\local\request\approved_contextlist;
@@ -39,10 +40,9 @@
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 class provider implements
+    core_userlist_provider,
     \core_privacy\local\metadata\provider,
-    \core_privacy\local\request\plugin\provider,
-    \core_privacy\local\request\core_userlist_provider {
-
+    \core_privacy\local\request\plugin\provider {
     /**
      * Return the fields which contain personal data.
      *
@@ -51,16 +51,19 @@ class provider implements
      * @return collection the updated collection of metadata items.
      */
     public static function get_metadata(collection $collection): collection {
-        $collection->add_database_table('moodleoverflow_discussions',
+        $collection->add_database_table(
+            'moodleoverflow_discussions',
             [
                 'name' => 'privacy:metadata:moodleoverflow_discussions:name',
                 'userid' => 'privacy:metadata:moodleoverflow_discussions:userid',
                 'timemodified' => 'privacy:metadata:moodleoverflow_discussions:timemodified',
                 'usermodified' => 'privacy:metadata:moodleoverflow_discussions:usermodified',
             ],
-            'privacy:metadata:moodleoverflow_discussions');
+            'privacy:metadata:moodleoverflow_discussions'
+        );
 
-        $collection->add_database_table('moodleoverflow_posts',
+        $collection->add_database_table(
+            'moodleoverflow_posts',
             [
                 'discussion' => 'privacy:metadata:moodleoverflow_posts:discussion',
                 'parent' => 'privacy:metadata:moodleoverflow_posts:parent',
@@ -69,9 +72,11 @@ public static function get_metadata(collection $collection): collection {
                 'modified' => 'privacy:metadata:moodleoverflow_posts:modified',
                 'message' => 'privacy:metadata:moodleoverflow_posts:message',
             ],
-            'privacy:metadata:moodleoverflow_posts');
+            'privacy:metadata:moodleoverflow_posts'
+        );
 
-        $collection->add_database_table('moodleoverflow_read',
+        $collection->add_database_table(
+            'moodleoverflow_read',
             [
                 'userid' => 'privacy:metadata:moodleoverflow_read:userid',
                 'discussionid' => 'privacy:metadata:moodleoverflow_read:discussionid',
@@ -79,24 +84,30 @@ public static function get_metadata(collection $collection): collection {
                 'firstread' => 'privacy:metadata:moodleoverflow_read:firstread',
                 'lastread' => 'privacy:metadata:moodleoverflow_read:lastread',
             ],
-            'privacy:metadata:moodleoverflow_read');
+            'privacy:metadata:moodleoverflow_read'
+        );
 
-        $collection->add_database_table('moodleoverflow_subscriptions',
+        $collection->add_database_table(
+            'moodleoverflow_subscriptions',
             [
                 'userid' => 'privacy:metadata:moodleoverflow_subscriptions:userid',
                 'moodleoverflow' => 'privacy:metadata:moodleoverflow_subscriptions:moodleoverflow',
             ],
-            'privacy:metadata:moodleoverflow_subscriptions');
+            'privacy:metadata:moodleoverflow_subscriptions'
+        );
 
-        $collection->add_database_table('moodleoverflow_discuss_subs',
+        $collection->add_database_table(
+            'moodleoverflow_discuss_subs',
             [
                 'userid' => 'privacy:metadata:moodleoverflow_discuss_subs:userid',
                 'discussion' => 'privacy:metadata:moodleoverflow_discuss_subs:discussion',
                 'preference' => 'privacy:metadata:moodleoverflow_discuss_subs:preference',
             ],
-            'privacy:metadata:moodleoverflow_discuss_subs');
+            'privacy:metadata:moodleoverflow_discuss_subs'
+        );
 
-        $collection->add_database_table('moodleoverflow_ratings',
+        $collection->add_database_table(
+            'moodleoverflow_ratings',
             [
                 'userid' => 'privacy:metadata:moodleoverflow_ratings:userid',
                 'postid' => 'privacy:metadata:moodleoverflow_ratings:postid',
@@ -104,24 +115,30 @@ public static function get_metadata(collection $collection): collection {
                 'firstrated' => 'privacy:metadata:moodleoverflow_ratings:firstrated',
                 'lastchanged' => 'privacy:metadata:moodleoverflow_ratings:lastchanged',
             ],
-            'privacy:metadata:moodleoverflow_ratings');
+            'privacy:metadata:moodleoverflow_ratings'
+        );
 
-        $collection->add_database_table('moodleoverflow_tracking',
+        $collection->add_database_table(
+            'moodleoverflow_tracking',
             [
                 'userid' => 'privacy:metadata:moodleoverflow_tracking:userid',
                 'moodleoverflowid' => 'privacy:metadata:moodleoverflow_tracking:moodleoverflowid',
             ],
-            'privacy:metadata:moodleoverflow_tracking');
+            'privacy:metadata:moodleoverflow_tracking'
+        );
 
-        $collection->add_database_table('moodleoverflow_grades',
+        $collection->add_database_table(
+            'moodleoverflow_grades',
             [
                 'userid' => 'privacy:metadata:moodleoverflow_grades:userid',
                 'moodleoverflowid' => 'privacy:metadata:moodleoverflow_grades:moodleoverflowid',
                 'grade' => 'privacy:metadata:moodleoverflow_grades:grade',
             ],
-            'privacy:metadata:moodleoverflow_grades');
+            'privacy:metadata:moodleoverflow_grades'
+        );
 
-        $collection->link_subsystem('core_files',
+        $collection->link_subsystem(
+            'core_files',
             'privacy:metadata:core_files'
         );
 
@@ -201,7 +218,7 @@ public static function export_user_data(approved_contextlist $contextlist) {
         $user = $contextlist->get_user();
         $userid = $user->id;
 
-        list($contextsql, $contextparams) = $DB->get_in_or_equal($contextlist->get_contextids(), SQL_PARAMS_NAMED);
+        [$contextsql, $contextparams] = $DB->get_in_or_equal($contextlist->get_contextids(), SQL_PARAMS_NAMED);
 
         $sql = "SELECT
                     c.id AS contextid,
@@ -481,7 +498,7 @@ public static function delete_data_for_users(approved_userlist $userlist) {
         $cm = $DB->get_record('course_modules', ['id' => $context->instanceid]);
         $moodleoverflow = $DB->get_record('moodleoverflow', ['id' => $cm->instance]);
 
-        list($userinsql, $userinparams) = $DB->get_in_or_equal($userlist->get_userids(), SQL_PARAMS_NAMED);
+        [$userinsql, $userinparams] = $DB->get_in_or_equal($userlist->get_userids(), SQL_PARAMS_NAMED);
 
         $params = array_merge(['moodleoverflowid' => $moodleoverflow->id], $userinparams);
         // Delete the entries from the table tracking, subscriptions, read and discussion_subs.
diff --git a/classes/ratings.php b/classes/ratings.php
index b3abf895ebe..fd983aae236 100644
--- a/classes/ratings.php
+++ b/classes/ratings.php
@@ -33,7 +33,6 @@
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 class ratings {
-
     /**
      * Add a rating.
      * This is the basic function to add or edit ratings.
@@ -59,12 +58,20 @@ public static function moodleoverflow_add_rating($moodleoverflow, $postid, $rati
         $post = moodleoverflow_get_record_or_exception('moodleoverflow_posts', ['id' => $postid], 'invalidparentpostid');
 
         // Check if the post belongs to a discussion.
-        $discussion = moodleoverflow_get_record_or_exception('moodleoverflow_discussions', ['id' => $post->discussion],
-                                                   'notpartofdiscussion');
+        $discussion = moodleoverflow_get_record_or_exception(
+            'moodleoverflow_discussions',
+            ['id' => $post->discussion],
+            'notpartofdiscussion'
+        );
 
         // Get the related course.
-        $course = moodleoverflow_get_record_or_exception('course', ['id' => $moodleoverflow->course],
-                                                         'invalidcourseid', '*', true);
+        $course = moodleoverflow_get_record_or_exception(
+            'course',
+            ['id' => $moodleoverflow->course],
+            'invalidcourseid',
+            '*',
+            true
+        );
 
         // Are multiple marks allowed?
         $markssetting = $DB->get_record('moodleoverflow', ['id' => $moodleoverflow->id], 'allowmultiplemarks');
@@ -76,7 +83,6 @@ public static function moodleoverflow_add_rating($moodleoverflow, $postid, $rati
 
         // Redirect the user if capabilities are missing.
         if (!self::moodleoverflow_user_can_rate($post, $modulecontext, $userid)) {
-
             // Catch unenrolled users.
             $returnurl = '/mod/moodleoverflow/view.php?m' . $moodleoverflow->id;
             moodleoverflow_catch_unenrolled_user($coursecontext, $course->id, $returnurl);
@@ -92,8 +98,12 @@ public static function moodleoverflow_add_rating($moodleoverflow, $postid, $rati
 
         // Check if we are removing a mark.
         if (in_array($rating / 10, $possibleratings)) {
-            moodleoverflow_get_config_or_exception('moodleoverflow', 'allowratingchange',
-                                                   'noratingchangeallowed', 'moodleoverflow');
+            moodleoverflow_get_config_or_exception(
+                'moodleoverflow',
+                'allowratingchange',
+                'noratingchangeallowed',
+                'moodleoverflow'
+            );
 
             // Delete the rating.
             return self::moodleoverflow_remove_rating($postid, $rating / 10, $userid, $modulecontext);
@@ -114,7 +124,6 @@ public static function moodleoverflow_add_rating($moodleoverflow, $postid, $rati
 
             // Check if multiple marks are not enabled.
             if (!$multiplemarks) {
-
                 // Get other ratings in the discussion.
                 $sql = "SELECT *
                         FROM {moodleoverflow_ratings}
@@ -124,22 +133,37 @@ public static function moodleoverflow_add_rating($moodleoverflow, $postid, $rati
                 // If there is an old rating, update it. Else create a new rating record.
                 if ($otherrating) {
                     return self::moodleoverflow_update_rating_record($post->id, $rating, $userid, $otherrating->id, $modulecontext);
-
                 } else {
-                    return self::moodleoverflow_add_rating_record($moodleoverflow->id, $discussion->id, $post->id,
-                                                                  $rating, $userid, $modulecontext);
+                    return self::moodleoverflow_add_rating_record(
+                        $moodleoverflow->id,
+                        $discussion->id,
+                        $post->id,
+                        $rating,
+                        $userid,
+                        $modulecontext
+                    );
                 }
             } else {
                 // If multiplemarks are allowed, only create a new rating.
-                return self::moodleoverflow_add_rating_record($moodleoverflow->id, $discussion->id, $post->id,
-                                                              $rating, $userid, $modulecontext);
+                return self::moodleoverflow_add_rating_record(
+                    $moodleoverflow->id,
+                    $discussion->id,
+                    $post->id,
+                    $rating,
+                    $userid,
+                    $modulecontext
+                );
             }
         }
 
         // Update an rating record.
         if ($oldrating['normal']) {
-            moodleoverflow_get_config_or_exception('moodleoverflow', 'allowratingchange',
-                                                   'noratingchangeallowed', 'moodleoverflow');
+            moodleoverflow_get_config_or_exception(
+                'moodleoverflow',
+                'allowratingchange',
+                'noratingchangeallowed',
+                'moodleoverflow'
+            );
 
             // Check if the rating can still be changed.
             if (!self::moodleoverflow_can_be_changed($postid, $oldrating['normal']->rating, $userid)) {
@@ -151,8 +175,14 @@ public static function moodleoverflow_add_rating($moodleoverflow, $postid, $rati
         }
 
         // Create a new rating record.
-        return self::moodleoverflow_add_rating_record($moodleoverflow->id, $post->discussion, $postid,
-                                                      $rating, $userid, $modulecontext);
+        return self::moodleoverflow_add_rating_record(
+            $moodleoverflow->id,
+            $post->discussion,
+            $postid,
+            $rating,
+            $userid,
+            $modulecontext
+        );
     }
 
     /**
@@ -168,8 +198,11 @@ public static function moodleoverflow_add_rating($moodleoverflow, $postid, $rati
      */
     public static function moodleoverflow_get_reputation($moodleoverflowid, $userid, $forcesinglerating = false) {
         // Check the moodleoverflow instance.
-        $moodleoverflow = moodleoverflow_get_record_or_exception('moodleoverflow', ['id' => $moodleoverflowid],
-                                                                 'invalidmoodleoverflowid');
+        $moodleoverflow = moodleoverflow_get_record_or_exception(
+            'moodleoverflow',
+            ['id' => $moodleoverflowid],
+            'invalidmoodleoverflowid'
+        );
 
         // Check whether the reputation can be summed over the whole course.
         if ($moodleoverflow->coursewidereputation && !$forcesinglerating) {
@@ -310,7 +343,6 @@ public static function moodleoverflow_get_ratings_by_discussion($discussionid, $
 
         // A single post is requested.
         if ($postid) {
-
             // Check if the post is part of the discussion.
             if (array_key_exists($postid, $votes)) {
                 return $votes[$postid];
@@ -337,10 +369,8 @@ public static function moodleoverflow_discussion_is_solved($discussionid, $teach
 
         // Is the teachers solved-status requested?
         if ($teacher) {
-
             // Check if a teacher marked a solution as solved.
             if ($DB->record_exists('moodleoverflow_ratings', ['discussionid' => $discussionid, 'rating' => 3])) {
-
                 // Return the rating records.
                 return $DB->get_records('moodleoverflow_ratings', ['discussionid' => $discussionid, 'rating' => 3]);
             }
@@ -351,7 +381,6 @@ public static function moodleoverflow_discussion_is_solved($discussionid, $teach
 
         // Check if the topic starter marked a solution as helpful.
         if ($DB->record_exists('moodleoverflow_ratings', ['discussionid' => $discussionid, 'rating' => 4])) {
-
             // Return the rating records.
             return $DB->get_records('moodleoverflow_ratings', ['discussionid' => $discussionid, 'rating' => 4]);
         }
@@ -684,8 +713,10 @@ private static function moodleoverflow_sort_postgroup(&$posts, $low, $high) {
             if ($posts[$low]->votesdifference == $posts[$low + 1]->votesdifference) {
                 $tempstartindex = $low;
                 $tempendindex = $tempstartindex + 1;
-                while (($tempendindex + 1 <= $high) &&
-                      ($posts[$tempendindex]->votesdifference == $posts[$tempendindex + 1]->votesdifference)) {
+                while (
+                    ($tempendindex + 1 <= $high) &&
+                      ($posts[$tempendindex]->votesdifference == $posts[$tempendindex + 1]->votesdifference)
+                ) {
                     $tempendindex++;
                 }
                 moodleoverflow_quick_array_sort($posts, $tempstartindex, $tempendindex, 'modified', 'asc');
diff --git a/classes/readtracking.php b/classes/readtracking.php
index bc2b556e82d..3b368c3dffb 100644
--- a/classes/readtracking.php
+++ b/classes/readtracking.php
@@ -35,7 +35,6 @@
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 class readtracking {
-
     /**
      * Determine if a user can track moodleoverflows and optionally a particular moodleoverflow instance.
      * Checks the site settings and the moodleoverflow settings (if requested).
@@ -100,8 +99,10 @@ public static function moodleoverflow_is_tracked($moodleoverflow, $user = null)
         $forced = ($moodleoverflow->trackingtype == MOODLEOVERFLOW_TRACKING_FORCED);
 
         // Check the preferences of the user.
-        $userpreference = $DB->get_record('moodleoverflow_tracking',
-            ['userid' => $user->id, 'moodleoverflowid' => $moodleoverflow->id]);
+        $userpreference = $DB->get_record(
+            'moodleoverflow_tracking',
+            ['userid' => $user->id, 'moodleoverflowid' => $moodleoverflow->id]
+        );
 
         // Return the boolean.
         if (get_config('moodleoverflow', 'allowforcedreadtracking')) {
@@ -158,7 +159,6 @@ public static function moodleoverflow_mark_discussion_read($discussionid, $modco
 
         // Iterate through all posts of the discussion.
         foreach ($posts as $post) {
-
             // Ignore already read posts.
             if (!is_null($post->postread)) {
                 continue;
@@ -232,7 +232,6 @@ public static function moodleoverflow_add_read_record($userid, $postid) {
         // Check for read records for this user an this post.
         $oldrecord = $DB->get_record('moodleoverflow_read', ['postid' => $postid, 'userid' => $userid]);
         if (!$oldrecord) {
-
             // If there are no old records, create a new one.
             $sql = "INSERT INTO {moodleoverflow_read} (userid, postid, discussionid, moodleoverflowid, firstread, lastread)
                  SELECT ?, p.id, p.discussion, d.moodleoverflow, ?, ?
@@ -364,7 +363,6 @@ public static function moodleoverflow_stop_tracking($moodleoverflowid, $userid =
 
         // Stop tracking the moodleoverflow if not already stopped.
         if (!$isstopped) {
-
             // Create the tracking object.
             $tracking = new \stdClass();
             $tracking->userid = $userid;
@@ -414,7 +412,6 @@ public static function get_untracked_moodleoverflows($userid, $courseid) {
 
         // Check whether readtracking may be forced.
         if (get_config('moodleoverflow', 'allowforcedreadtracking')) {
-
             // Create a part of a sql-statement.
             $trackingsql = "AND (m.trackingtype = " . MOODLEOVERFLOW_TRACKING_OFF . "
                             OR (m.trackingtype = " . MOODLEOVERFLOW_TRACKING_OPTIONAL . " AND mt.id IS NOT NULL))";
@@ -466,12 +463,14 @@ public static function moodleoverflow_count_unread_posts_moodleoverflow($cm) {
                 "WHERE m.id = :moodleoverflowid", ['userid' => $USER->id, 'moodleoverflowid' => $cm->instance]);
 
         // Return if tracking is off, or ((optional or forced, but forced disallowed by admin) and user has disabled tracking).
-        if ($moodleoverflow->trackingtype == MOODLEOVERFLOW_TRACKING_OFF || (
+        if (
+            $moodleoverflow->trackingtype == MOODLEOVERFLOW_TRACKING_OFF || (
                         ($moodleoverflow->trackingtype == MOODLEOVERFLOW_TRACKING_OPTIONAL || (
                                         $moodleoverflow->trackingtype == MOODLEOVERFLOW_TRACKING_FORCED &&
                                         !get_config('moodleoverflow', 'allowforcedreadtracking')
                                 )
-                        ) && $moodleoverflow->hasdisabledtracking)) {
+                        ) && $moodleoverflow->hasdisabledtracking)
+        ) {
             return 0;
         }
         // Get the current timestamp and the cutoffdate.
diff --git a/classes/review.php b/classes/review.php
index a566e9896da..41a07340700 100644
--- a/classes/review.php
+++ b/classes/review.php
@@ -32,7 +32,6 @@
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 class review {
-
     /**
      * Nothing has to be reviewed.
      */
@@ -68,9 +67,10 @@ public static function get_short_review_info_for_discussion(int $discussionid) {
         global $DB;
 
         return $DB->get_record_sql(
-                'SELECT COUNT(*) as count, MIN(id) AS first ' .
+            'SELECT COUNT(*) as count, MIN(id) AS first ' .
                 'FROM {moodleoverflow_posts} ' .
-                'WHERE discussion = :discussionid AND reviewed = 0 AND created < :cutofftime', [
+                'WHERE discussion = :discussionid AND reviewed = 0 AND created < :cutofftime',
+            [
                         'discussionid' => $discussionid,
                         'cutofftime' => time() - get_config('moodleoverflow', 'reviewpossibleaftertime'),
                 ]
@@ -95,8 +95,12 @@ public static function get_first_review_post($moodleoverflowid, $afterpostid = n
         $addwhere = '';
 
         if ($afterpostid) {
-            $afterdiscussionid = $DB->get_field('moodleoverflow_posts', 'discussion', ['id' => $afterpostid],
-                MUST_EXIST);
+            $afterdiscussionid = $DB->get_field(
+                'moodleoverflow_posts',
+                'discussion',
+                ['id' => $afterpostid],
+                MUST_EXIST
+            );
 
             $orderby = 'CASE WHEN (p.discussion > :afterdiscussionid OR (p.discussion = :afterdiscussionid2 AND p.id
              > :afterpostid)) THEN 0 ELSE 1 END, ';
@@ -159,15 +163,14 @@ public static function is_post_in_review_period($post): bool {
     public static function count_outstanding_reviews_in_moodleoverflow($moodleoverflowid): int {
         global $DB;
         return $DB->count_records_sql(
-                'SELECT COUNT(*) ' .
+            'SELECT COUNT(*) ' .
                 'FROM {moodleoverflow_posts} p ' .
                 'JOIN {moodleoverflow_discussions} d ON d.id = p.discussion ' .
-                'WHERE d.moodleoverflow = :moodleoverflowid AND p.created < :cutofftime AND reviewed = 0', [
+                'WHERE d.moodleoverflow = :moodleoverflowid AND p.created < :cutofftime AND reviewed = 0',
+            [
                         'moodleoverflowid' => $moodleoverflowid,
                         'cutofftime' => time() - get_config('moodleoverflow', 'reviewpossibleaftertime'),
                 ]
         );
     }
-
-
 }
diff --git a/classes/subscriptions.php b/classes/subscriptions.php
index e1c0075a224..982a090b0da 100644
--- a/classes/subscriptions.php
+++ b/classes/subscriptions.php
@@ -37,7 +37,6 @@
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 class subscriptions {
-
     /**
      * The status value for an unsubscribed discussion.
      *
@@ -105,8 +104,10 @@ class subscriptions {
     public static function is_subscribed($userid, $moodleoverflow, $context, $discussionid = null) {
 
         // Is the user forced to be subscribed to the moodleoverflow?
-        if (self::is_forcesubscribed($moodleoverflow) &&
-            has_capability('mod/moodleoverflow:allowforcesubscribe', $context, $userid)) {
+        if (
+            self::is_forcesubscribed($moodleoverflow) &&
+            has_capability('mod/moodleoverflow:allowforcesubscribe', $context, $userid)
+        ) {
             return true;
         }
 
@@ -191,10 +192,8 @@ public static function fill_subscription_cache($moodleoverflowid, $userid = null
 
         // Check if the moodleoverflow has not been fetched as a whole.
         if (!isset(self::$fetchedmoodleoverflows[$moodleoverflowid])) {
-
             // Is a specified user requested?
             if (isset($userid)) {
-
                 // Create the cache for the user.
                 if (!isset(self::$moodleoverflowcache[$userid])) {
                     self::$moodleoverflowcache[$userid] = [];
@@ -202,7 +201,6 @@ public static function fill_subscription_cache($moodleoverflowid, $userid = null
 
                 // Check if the user is subscribed to the moodleoverflow.
                 if (!isset(self::$moodleoverflowcache[$userid][$moodleoverflowid])) {
-
                     // Request to the database.
                     $params = ['userid' => $userid, 'moodleoverflow' => $moodleoverflowid];
                     if ($DB->record_exists('moodleoverflow_subscriptions', $params)) {
@@ -211,16 +209,13 @@ public static function fill_subscription_cache($moodleoverflowid, $userid = null
                         self::$moodleoverflowcache[$userid][$moodleoverflowid] = false;
                     }
                 }
-
             } else { // The request is not connected to a specific user.
-
                 // Request all records.
                 $params = ['moodleoverflow' => $moodleoverflowid];
                 $subscriptions = $DB->get_recordset('moodleoverflow_subscriptions', $params, '', 'id, userid');
 
                 // Loop through the records.
                 foreach ($subscriptions as $data) {
-
                     // Create a new record if necessary.
                     if (!isset(self::$moodleoverflowcache[$data->userid])) {
                         self::$moodleoverflowcache[$data->userid] = [];
@@ -274,10 +269,8 @@ public static function fill_discussion_subscription_cache($moodleoverflowid, $us
 
         // Check if the discussions of this moodleoverflow has been fetched as a whole.
         if (!isset(self::$fetcheddiscussions[$moodleoverflowid])) {
-
             // Check if data for a specific user is requested.
             if (isset($userid)) {
-
                 // Create a new record if necessary.
                 if (!isset(self::$discussioncache[$userid])) {
                     self::$discussioncache[$userid] = [];
@@ -285,11 +278,14 @@ public static function fill_discussion_subscription_cache($moodleoverflowid, $us
 
                 // Check if the moodleoverflow instance is already cached.
                 if (!isset(self::$discussioncache[$userid][$moodleoverflowid])) {
-
                     // Get all records.
                     $params = ['userid' => $userid, 'moodleoverflow' => $moodleoverflowid];
-                    $subscriptions = $DB->get_recordset('moodleoverflow_discuss_subs', $params,
-                        null, 'id, discussion, preference');
+                    $subscriptions = $DB->get_recordset(
+                        'moodleoverflow_discuss_subs',
+                        $params,
+                        null,
+                        'id, discussion, preference'
+                    );
 
                     // Loop through all of these and add them to the discussion cache.
                     foreach ($subscriptions as $id => $data) {
@@ -299,14 +295,17 @@ public static function fill_discussion_subscription_cache($moodleoverflowid, $us
                     // Close the record set.
                     $subscriptions->close();
                 }
-
             } else {
                 // No user ID is submitted.
 
                 // Get all records.
                 $params = ['moodleoverflow' => $moodleoverflowid];
-                $subscriptions = $DB->get_recordset('moodleoverflow_discuss_subs', $params,
-                    null, 'id, userid, discussion, preference');
+                $subscriptions = $DB->get_recordset(
+                    'moodleoverflow_discuss_subs',
+                    $params,
+                    null,
+                    'id, userid, discussion, preference'
+                );
 
                 // Loop throuch all of them and add them to the discussion cache.
                 foreach ($subscriptions as $id => $data) {
@@ -428,7 +427,7 @@ public static function get_unsubscribable_moodleoverflows() {
         }
 
         // Get a list of all moodleoverflows the user is connected to.
-        list($coursesql, $courseparams) = $DB->get_in_or_equal($courseids, SQL_PARAMS_NAMED, 'c');
+        [$coursesql, $courseparams] = $DB->get_in_or_equal($courseids, SQL_PARAMS_NAMED, 'c');
 
         // Find all moodleoverflows from the user's courses that they are subscribed to and which are not set to forced.
         // It is possible for users to be subscribed to a moodleoveflow in subscriptions disallowed mode so they must be
@@ -469,11 +468,11 @@ public static function get_potential_subscribers($context, $fields, $sort = '')
         global $DB;
 
         // Only enrolled users can subscribe.
-        list($esql, $params) = get_enrolled_sql($context, 'mod/moodleoverflow:allowforcesubscribe');
+        [$esql, $params] = get_enrolled_sql($context, 'mod/moodleoverflow:allowforcesubscribe');
 
         // Default ordering of the list.
         if (!$sort) {
-            list($sort, $sortparams) = users_order_by_sql('u');
+            [$sort, $sortparams] = users_order_by_sql('u');
             $params = array_merge($params, $sortparams);
         }
 
@@ -546,14 +545,12 @@ public static function get_subscribed_users($moodleoverflow, $context, $fields =
         if (self::subscription_disabled($moodleoverflow)) {
             $results = [];
         } else {
-
             // Only enrolled users can subscribe to a moodleoverflow.
-            list($esql, $params) = get_enrolled_sql($context, '', 0, true);
+            [$esql, $params] = get_enrolled_sql($context, '', 0, true);
             $params['moodleoverflowid'] = $moodleoverflow->id;
 
             // Check discussion subscriptions as well?
             if ($includediscussions) {
-
                 // Determine more params.
                 $params['smoodleoverflowid'] = $moodleoverflow->id;
                 $params['dsmoodleoverflowid'] = $moodleoverflow->id;
@@ -571,7 +568,6 @@ public static function get_subscribed_users($moodleoverflow, $context, $fields =
                         JOIN {user} u ON u.id = subscriptions.userid
                         JOIN ($esql) je ON je.id = u.id
                         ORDER BY u.email ASC";
-
             } else {
                 // Dont include the discussion subscriptions.
 
@@ -665,7 +661,6 @@ public static function subscribe_user($userid, $moodleoverflow, $context, $userr
 
         // If the subscription was requested by the user, remove all records for the discussions within this moodleoverflow.
         if ($userrequest) {
-
             // Delete all those discussion subscriptions.
             $params = [
                 'userid' => $userid,
@@ -718,13 +713,11 @@ public static function unsubscribe_user($userid, $moodleoverflow, $context, $use
         // Check if there is a subscription record.
         $params = ['userid' => $userid, 'moodleoverflow' => $moodleoverflow->id];
         if ($subscription = $DB->get_record('moodleoverflow_subscriptions', $params)) {
-
             // Delete this record.
             $DB->delete_records('moodleoverflow_subscriptions', ['id' => $subscription->id]);
 
             // Was the unsubscription requested by the user?
             if ($userrequest) {
-
                 // Delete the discussion subscriptions as well.
                 $params = [
                     'userid' => $userid,
@@ -783,29 +776,23 @@ public static function subscribe_user_to_discussion($userid, $discussion, $conte
         // Check if the user is already subscribed to the moodleoverflow.
         $params = ['userid' => $userid, 'moodleoverflow' => $discussion->moodleoverflow];
         if ($DB->record_exists('moodleoverflow_subscriptions', $params)) {
-
             // Check if the user is unsubscribed from the discussion.
             if ($subscription && $subscription->preference == self::MOODLEOVERFLOW_DISCUSSION_UNSUBSCRIBED) {
-
                 // Delete the discussion preference.
                 $DB->delete_records('moodleoverflow_discuss_subs', ['id' => $subscription->id]);
                 unset(self::$discussioncache[$userid][$discussion->moodleoverflow][$discussion->id]);
-
             } else {
                 // The user is already subscribed to the forum.
                 return false;
             }
-
         } else {
             // The user is not subscribed to the moodleoverflow.
 
             // Check if there is already a subscription to the discussion.
             if ($subscription) {
-
                 // Update the existing record.
                 $subscription->preference = time();
                 $DB->update_record('moodleoverflow_discuss_subs', $subscription);
-
             } else {
                 // Else a new record needs to be created.
                 $subscription = new stdClass();
@@ -858,31 +845,25 @@ public static function unsubscribe_user_from_discussion($userid, $discussion, $c
         // Check if the user is subscribed to the moodleoverflow.
         $params = ['userid' => $userid, 'moodleoverflow' => $discussion->moodleoverflow];
         if (!$DB->record_exists('moodleoverflow_subscriptions', $params)) {
-
             // Check if the user isn't subscribed to the moodleoverflow.
             if ($subscription && $subscription->preference != self::MOODLEOVERFLOW_DISCUSSION_UNSUBSCRIBED) {
-
                 // Delete the discussion subscription.
                 $DB->delete_records('moodleoverflow_discuss_subs', ['id' => $subscription->id]);
                 unset(self::$discussioncache[$userid][$discussion->moodleoverflow][$discussion->id]);
-
             } else {
                 // Else the user is not subscribed to the moodleoverflow.
 
                 // Nothing has to be done here.
                 return false;
             }
-
         } else {
             // There is an subscription record for this moodleoverflow.
 
             // Check whether an subscription record for this discussion.
             if ($subscription) {
-
                 // Update the existing record.
                 $subscription->preference = self::MOODLEOVERFLOW_DISCUSSION_UNSUBSCRIBED;
                 $DB->update_record('moodleoverflow_discuss_subs', $subscription);
-
             } else {
                 // There is no record.
 
@@ -951,7 +932,6 @@ public static function moodleoverflow_get_subscribe_link($moodleoverflow, $conte
         } else if ($isdisabled && !has_capability('mod/moodleoverflow:managesubscriptions', $context)) {
             return $messages['cantsubscribe'];
         } else {
-
             // The user needs to be enrolled.
             if (!is_enrolled($context, $USER, '', true)) {
                 return '';
@@ -1008,7 +988,6 @@ public static function moodleoverflow_post_subscription($fromform, $moodleoverfl
 
         // Do not continue if subscriptions are disabled.
         if ($disabled) {
-
             // If the user is subscribed, unsubscribe him.
             $subscribed = self::is_subscribed($USER->id, $moodleoverflow, $modulecontext);
             $coursecontext = \context_course::instance($moodleoverflow->course);
@@ -1056,7 +1035,6 @@ public static function get_discussion_subscription_icon($moodleoverflow, $contex
 
         // Create an icon to unsubscribe.
         if ($status) {
-
             // Create the icon.
             $string = get_string('clicktounsubscribe', 'moodleoverflow');
             $output = $OUTPUT->pix_icon('i/subscribed', $string, 'mod_moodleoverflow');
diff --git a/classes/tables/userstats_table.php b/classes/tables/userstats_table.php
index 4e4bd348a06..56ba38d63a9 100644
--- a/classes/tables/userstats_table.php
+++ b/classes/tables/userstats_table.php
@@ -39,7 +39,6 @@
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 class userstats_table extends \flexible_table {
-
     /** @var int the Course ID*/
     private $courseid;
 
@@ -104,7 +103,7 @@ public function out() {
     public function get_table_data() {
         // Get all userdata from a course.
         $context = \context_course::instance($this->courseid);
-        $users = get_enrolled_users($context , '',  0, 'u.id, u.firstname, u.lastname');
+        $users = get_enrolled_users($context, '', 0, 'u.id, u.firstname, u.lastname');
 
         // Step 1.0: Build the datatable with all relevant information.
         $ratingdata = $this->get_rating_data();
@@ -120,15 +119,14 @@ public function get_table_data() {
                 }
 
                 // Did a student submit a rating?
-                if ($row->rateuserid == $student->id ) {
+                if ($row->rateuserid == $student->id) {
                     $this->process_submitted_ratings($student, $row);
                 }
 
                 // Did the student write a post?
-                if ($row->postuserid == $student->id ) {
+                if ($row->postuserid == $student->id) {
                     $this->process_written_posts($student, $row);
                 }
-
             }
             // Get the user reputation from the course.
             $student->forumreputation = ratings::moodleoverflow_get_reputation_instance($this->moodleoverflowid, $student->id);
@@ -330,9 +328,10 @@ private function process_submitted_ratings($student, $row) {
     private function process_written_posts($student, $row) {
         // Only count a written post if: the post is not in an anonymous discussion:
         // or the post is in a partial anonymous discussion and the user is not the starter of the discussion.
-        if (!array_key_exists($row->postid, $student->submittedposts) &&
-            ($row->anonymoussetting == 0 || ($row->anonymoussetting == 1 && $row->postuserid != $row->discussuserid))) {
-
+        if (
+            !array_key_exists($row->postid, $student->submittedposts) &&
+            ($row->anonymoussetting == 0 || ($row->anonymoussetting == 1 && $row->postuserid != $row->discussuserid))
+        ) {
             $this->increment_forumactivity($student, $row);
             $student->courseactivity += 1;
             $student->submittedposts[$row->postid] = $row->postid;
diff --git a/classes/task/clean_readrecords.php b/classes/task/clean_readrecords.php
index f7c58206a19..0b602cd95db 100644
--- a/classes/task/clean_readrecords.php
+++ b/classes/task/clean_readrecords.php
@@ -35,7 +35,6 @@
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 class clean_readrecords extends \core\task\scheduled_task {
-
     /**
      * Get a descriptive name for this task (shown to admins).
      *
@@ -56,6 +55,4 @@ public function execute() {
         // The cron is finished.
         return true;
     }
-
 }
-
diff --git a/classes/task/send_daily_mails.php b/classes/task/send_daily_mails.php
index 807103c1409..1c9d432da1a 100644
--- a/classes/task/send_daily_mails.php
+++ b/classes/task/send_daily_mails.php
@@ -27,7 +27,6 @@
  * This task sends a daily mail of unread posts
  */
 class send_daily_mails extends \core\task\scheduled_task {
-
     /**
      * Return the task's name as shown in admin screens.
      *
diff --git a/classes/task/send_mails.php b/classes/task/send_mails.php
index 8fd15f98b77..3362d614f8d 100644
--- a/classes/task/send_mails.php
+++ b/classes/task/send_mails.php
@@ -38,7 +38,6 @@
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 class send_mails extends \core\task\scheduled_task {
-
     /**
      * Get a descriptive name for this task (shwon to admins).
      *
diff --git a/classes/task/send_review_mails.php b/classes/task/send_review_mails.php
index 2466c119d97..fceae571821 100644
--- a/classes/task/send_review_mails.php
+++ b/classes/task/send_review_mails.php
@@ -40,7 +40,6 @@
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 class send_review_mails extends \core\task\scheduled_task {
-
     /**
      * Get a descriptive name for this task (shown to admins).
      *
@@ -59,7 +58,6 @@ public function execute() {
 
         // The cron is finished.
         return true;
-
     }
 
     /**
@@ -132,8 +130,16 @@ public function send_review_notifications() {
                         cron_setup_user($userto, $course);
                     }
 
-                    $maildata = new moodleoverflow_email($course, $cm, $moodleoverflow, $discussion,
-                                                         $post, $userfrom, $userto, false);
+                    $maildata = new moodleoverflow_email(
+                        $course,
+                        $cm,
+                        $moodleoverflow,
+                        $discussion,
+                        $post,
+                        $userfrom,
+                        $userto,
+                        false
+                    );
 
                     $textcontext = $maildata->export_for_template($renderertext, true);
                     $htmlcontext = $maildata->export_for_template($rendererhtml, false);
@@ -153,14 +159,15 @@ public function send_review_notifications() {
         }
 
         if (!empty($success)) {
-            list($insql, $inparams) = $DB->get_in_or_equal($success);
+            [$insql, $inparams] = $DB->get_in_or_equal($success);
             $DB->set_field_select(
-                'moodleoverflow_posts', 'mailed', MOODLEOVERFLOW_MAILED_REVIEW_SUCCESS,
-                    'id ' . $insql, $inparams
-                );
+                'moodleoverflow_posts',
+                'mailed',
+                MOODLEOVERFLOW_MAILED_REVIEW_SUCCESS,
+                'id ' . $insql,
+                $inparams
+            );
             mtrace('Sent review notifications for ' . count($success) . ' posts successfully!');
         }
     }
-
 }
-
diff --git a/db/upgrade.php b/db/upgrade.php
index ae8a539965b..8fc139d088b 100644
--- a/db/upgrade.php
+++ b/db/upgrade.php
@@ -83,7 +83,6 @@ function xmldb_moodleoverflow_upgrade($oldversion) {
     }
 
     if ($oldversion < 2019052600) {
-
         // Define table moodleoverflow_grades to be created.
         $table = new xmldb_table('moodleoverflow_grades');
 
@@ -135,7 +134,6 @@ function xmldb_moodleoverflow_upgrade($oldversion) {
     }
 
     if ($oldversion < 2021060800) {
-
         // Define table moodleoverflow to be edited.
         $table = new xmldb_table('moodleoverflow');
 
@@ -171,7 +169,6 @@ function xmldb_moodleoverflow_upgrade($oldversion) {
     }
 
     if ($oldversion < 2021111700) {
-
         // Define table moodleoverflow to be edited.
         $table = new xmldb_table('moodleoverflow');
 
@@ -196,7 +193,6 @@ function xmldb_moodleoverflow_upgrade($oldversion) {
     }
 
     if ($oldversion < 2022072000) {
-
         // Define field needsreview to be added to moodleoverflow.
         $table = new xmldb_table('moodleoverflow');
         $field = new xmldb_field('needsreview', XMLDB_TYPE_INTEGER, '2', null, XMLDB_NOTNULL, null, '0', 'anonymous');
@@ -231,7 +227,6 @@ function xmldb_moodleoverflow_upgrade($oldversion) {
     }
 
     if ($oldversion < 2022110700) {
-
         if (get_capability_info('mod/moodleoverflow:reviewpost')) {
             foreach (get_archetype_roles('manager') as $role) {
                 unassign_capability('mod/moodleoverflow:reviewpost', $role->id);
@@ -239,7 +234,10 @@ function xmldb_moodleoverflow_upgrade($oldversion) {
 
             foreach (get_archetype_roles('teacher') as $role) {
                 assign_capability(
-                    'mod/moodleoverflow:reviewpost', CAP_ALLOW, $role->id, context_system::instance()
+                    'mod/moodleoverflow:reviewpost',
+                    CAP_ALLOW,
+                    $role->id,
+                    context_system::instance()
                 );
             }
         }
diff --git a/db/upgradelib.php b/db/upgradelib.php
index 7f1cd5f32da..e52840a6dc9 100644
--- a/db/upgradelib.php
+++ b/db/upgradelib.php
@@ -303,10 +303,10 @@ function mod_moodleoverflow_move_draftfiles_to_permanent_filearea() {
     $baseurl = $CFG->wwwroot . '/draftfile.php/';
 
     $posts = $DB->get_recordset_select(
-            'moodleoverflow_posts',
-            $DB->sql_like('message', ':searchurl'),
-            ['searchurl' => '%' . $DB->sql_like_escape($baseurl) . '%'],
-            'discussion'
+        'moodleoverflow_posts',
+        $DB->sql_like('message', ':searchurl'),
+        ['searchurl' => '%' . $DB->sql_like_escape($baseurl) . '%'],
+        'discussion'
     );
 
     $discussion = null;
@@ -315,7 +315,6 @@ function mod_moodleoverflow_move_draftfiles_to_permanent_filearea() {
     $postsupdated = 0;
 
     foreach ($posts as $post) {
-
         if (!$discussion || $discussion->id != $post->discussion) {
             $discussion = $DB->get_record('moodleoverflow_discussions', ['id' => $post->discussion]);
             $moodleoverflow = $DB->get_record('moodleoverflow', ['id' => $discussion->moodleoverflow]);
@@ -339,8 +338,16 @@ function mod_moodleoverflow_move_draftfiles_to_permanent_filearea() {
             continue;
         }
 
-        $post->message = mod_moodleoverflow_file_save_draft_area_files($draftid, $context->id, 'mod_moodleoverflow', 'post',
-                $post->id, $usercontext, mod_forum_post_form::editor_options($context, null), $post->message);
+        $post->message = mod_moodleoverflow_file_save_draft_area_files(
+            $draftid,
+            $context->id,
+            'mod_moodleoverflow',
+            'post',
+            $post->id,
+            $usercontext,
+            mod_forum_post_form::editor_options($context, null),
+            $post->message
+        );
 
         $DB->set_field('moodleoverflow_posts', 'message', $post->message, ['id' => $post->id]);
 
@@ -348,5 +355,4 @@ function mod_moodleoverflow_move_draftfiles_to_permanent_filearea() {
     }
 
     return $postsupdated;
-
 }
diff --git a/discussion.php b/discussion.php
index 488e34e14a9..0767430184a 100644
--- a/discussion.php
+++ b/discussion.php
@@ -43,8 +43,11 @@
 $discussion = moodleoverflow_get_record_or_exception('moodleoverflow_discussions', ['id' => $d], 'invaliddiscussionid');
 
 // Check if the related moodleoverflow instance is valid.
-$moodleoverflow = moodleoverflow_get_record_or_exception('moodleoverflow', ['id' => $discussion->moodleoverflow],
-                                                         'invalidmoodleoverflowid');
+$moodleoverflow = moodleoverflow_get_record_or_exception(
+    'moodleoverflow',
+    ['id' => $discussion->moodleoverflow],
+    'invalidmoodleoverflowid'
+);
 
 // Check if the related moodleoverflow instance is valid.
 $course = moodleoverflow_get_record_or_exception('course', ['id' => $discussion->course], 'invalidcourseid', '*', true);
@@ -111,8 +114,11 @@
 
 // Has the user the capability to view the post?
 if (!moodleoverflow_user_can_see_post($moodleoverflow, $discussion, $post, $cm)) {
-    throw new moodle_exception('noviewdiscussionspermission', 'moodleoverflow',
-        "$CFG->wwwroot/mod/moodleoverflow/view.php?m=$moodleoverflow->id");
+    throw new moodle_exception(
+        'noviewdiscussionspermission',
+        'moodleoverflow',
+        "$CFG->wwwroot/mod/moodleoverflow/view.php?m=$moodleoverflow->id"
+    );
 }
 
 // Append the discussion name to the navigation.
@@ -127,8 +133,10 @@
     $discussion->name = get_string('privacy:anonym_discussion_name', 'mod_moodleoverflow');
 }
 
-$node = $forumnode->add(format_string($discussion->name),
-    new moodle_url('/mod/moodleoverflow/discussion.php', ['d' => $discussion->id]));
+$node = $forumnode->add(
+    format_string($discussion->name),
+    new moodle_url('/mod/moodleoverflow/discussion.php', ['d' => $discussion->id])
+);
 $node->display = false;
 if ($node && ($post->id != $discussion->firstpost)) {
     $node->add(format_string($post->subject), $PAGE->url);
diff --git a/externallib.php b/externallib.php
index 98d8739e3b1..0c991eb78ff 100644
--- a/externallib.php
+++ b/externallib.php
@@ -39,7 +39,6 @@
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 class mod_moodleoverflow_external extends external_api {
-
     // LEARNWEB-TODO: Adapt the functions to the new way of working with posts.
     /**
      * Returns description of method parameters
@@ -90,12 +89,18 @@ public static function record_vote($postid, $ratingid) {
         $post = $DB->get_record('moodleoverflow_posts', ['id' => $params['postid']], '*', MUST_EXIST);
 
         // Check if the discussion is valid.
-        $discussion = moodleoverflow_get_record_or_exception('moodleoverflow_discussions', ['id' => $post->discussion],
-                                                             'invaliddiscussionid');
+        $discussion = moodleoverflow_get_record_or_exception(
+            'moodleoverflow_discussions',
+            ['id' => $post->discussion],
+            'invaliddiscussionid'
+        );
 
         // Check if the related moodleoverflow instance is valid.
-        $moodleoverflow = moodleoverflow_get_record_or_exception('moodleoverflow', ['id' => $discussion->moodleoverflow],
-                                                                 'invalidmoodleoverflowid');
+        $moodleoverflow = moodleoverflow_get_record_or_exception(
+            'moodleoverflow',
+            ['id' => $discussion->moodleoverflow],
+            'invalidmoodleoverflowid'
+        );
 
         // Check if the related moodleoverflow instance is valid.
         $course = moodleoverflow_get_record_or_exception('course', ['id' => $discussion->course], 'invalidcourseid', '*', true);
@@ -111,15 +116,24 @@ public static function record_vote($postid, $ratingid) {
         require_capability('mod/moodleoverflow:ratepost', $context);
 
         // Rate the post.
-        if (!\mod_moodleoverflow\ratings::moodleoverflow_add_rating($moodleoverflow,
-            $params['postid'], $params['ratingid'], $cm, $USER->id)) {
+        if (
+            !\mod_moodleoverflow\ratings::moodleoverflow_add_rating(
+                $moodleoverflow,
+                $params['postid'],
+                $params['ratingid'],
+                $cm,
+                $USER->id
+            )
+        ) {
             throw new moodle_exception('ratingfailed', 'moodleoverflow');
         }
 
         $post = moodleoverflow_get_post_full($params['postid']);
         $postownerid = $post->userid;
-        $rating = \mod_moodleoverflow\ratings::moodleoverflow_get_ratings_by_discussion($discussion->id,
-            $params['postid']);
+        $rating = \mod_moodleoverflow\ratings::moodleoverflow_get_ratings_by_discussion(
+            $discussion->id,
+            $params['postid']
+        );
         $ownerrating = \mod_moodleoverflow\ratings::moodleoverflow_get_reputation($moodleoverflow->id, $postownerid);
         $raterrating = \mod_moodleoverflow\ratings::moodleoverflow_get_reputation($moodleoverflow->id, $USER->id);
 
@@ -259,14 +273,14 @@ public static function review_reject_post($postid, $reason = null) {
         $userto->anonymous = anonymous::is_post_anonymous($discussion, $moodleoverflow, $post->userid);
 
         $maildata = new moodleoverflow_email(
-                $course,
-                $cm,
-                $moodleoverflow,
-                $discussion,
-                $post,
-                $userto,
-                $userto,
-                false
+            $course,
+            $cm,
+            $moodleoverflow,
+            $discussion,
+            $post,
+            $userto,
+            $userto,
+            false
         );
 
         $textcontext = $maildata->export_for_template($renderertext, true);
@@ -278,11 +292,11 @@ public static function review_reject_post($postid, $reason = null) {
         }
 
         email_to_user(
-                $userto,
-                \core_user::get_noreply_user(),
-                get_string('email_rejected_subject', 'moodleoverflow', $textcontext),
-                $OUTPUT->render_from_template('mod_moodleoverflow/email_rejected_text', $textcontext),
-                $OUTPUT->render_from_template('mod_moodleoverflow/email_rejected_html', $htmlcontext)
+            $userto,
+            \core_user::get_noreply_user(),
+            get_string('email_rejected_subject', 'moodleoverflow', $textcontext),
+            $OUTPUT->render_from_template('mod_moodleoverflow/email_rejected_text', $textcontext),
+            $OUTPUT->render_from_template('mod_moodleoverflow/email_rejected_html', $htmlcontext)
         );
 
         $url = review::get_first_review_post($moodleoverflow->id, $post->id);
diff --git a/grade.php b/grade.php
index ab46489e8b0..21a1a330292 100644
--- a/grade.php
+++ b/grade.php
@@ -28,4 +28,4 @@
 
 $cm = get_coursemodule_from_id('moodleoverflow', $id, 0, false, MUST_EXIST);
 
-redirect('view.php?id='.$cm->id);
+redirect('view.php?id=' . $cm->id);
diff --git a/index.php b/index.php
index 193d769764f..ef1ba7f8274 100644
--- a/index.php
+++ b/index.php
@@ -124,7 +124,6 @@
 
 // Loop through allmoodleoverflows.
 foreach ($modinfo->get_instances_of('moodleoverflow') as $moodleoverflowid => $cm) {
-
     // Check whether the user can see the instance.
     if (!$cm->uservisible || !isset($moodleoverflows[$moodleoverflowid])) {
         continue;
@@ -159,10 +158,8 @@
 
 // Handle course wide subscriptions or unsubscriptions if requested.
 if (!is_null($subscribe)) {
-
     // Catch guests and not subscribable moodleoverflows.
     if (isguestuser() || !$showsubscriptioncolumns) {
-
         // Redirect the user back.
         $url = new moodle_url('/mod/moodleoverflow/index.php', ['id' => $id]);
         $notification = \core\output\notification::NOTIFY_ERROR;
@@ -171,7 +168,6 @@
 
     // Loop through all moodleoverflows.
     foreach ($modinfo->get_instances_of('moodleoverflow') as $moodleoverflowid => $cm) {
-
         // Initiate variables.
         $moodleoverflow = $moodleoverflows[$moodleoverflowid];
         $modulecontext = context_module::instance($cm->id);
@@ -196,7 +192,6 @@
         $forcesubscribed = \mod_moodleoverflow\subscriptions::is_forcesubscribed($moodleoverflow) &&
                 has_capability('mod/moodleoverflow:allowforcesubscribe', $modulecontext);
         if (!$forcesubscribed) {
-
             // Check the current state.
             $subscribed = \mod_moodleoverflow\subscriptions::is_subscribed($USER->id, $moodleoverflow, $modulecontext);
             $subscribable = \mod_moodleoverflow\subscriptions::is_subscribable($moodleoverflow, $modulecontext);
@@ -228,10 +223,8 @@
 
 // Check if there are moodleoverflows.
 if ($generalmoodleoverflows) {
-
     // Loop through all of the moodleoverflows.
     foreach ($generalmoodleoverflows as $moodleoverflow) {
-
         // Retrieve the contexts.
         $cm = $modinfo->instances['moodleoverflow'][$moodleoverflow->id];
         $modulecontext = context_module::instance($cm->id);
@@ -241,7 +234,6 @@
 
         // Check whether the user can track the moodleoverflow.
         if ($cantrack) {
-
             // Check whether the tracking is disabled.
             if ($moodleoverflow->trackingtype == MOODLEOVERFLOW_TRACKING_OFF) {
                 $unreadlink = '-';
@@ -252,8 +244,8 @@
                 // Check if this moodleoverflow is manually untracked.
                 if (isset($untracked[$moodleoverflow->id])) {
                     $unreadlink = '-';
-
-                } else if ($unread = \mod_moodleoverflow\readtracking::moodleoverflow_count_unread_posts_moodleoverflow($cm)
+                } else if (
+                    $unread = \mod_moodleoverflow\readtracking::moodleoverflow_count_unread_posts_moodleoverflow($cm)
                 ) {
                     // There are unread posts in the moodleoverflow instance.
 
@@ -266,7 +258,6 @@
                         $string['markallread'] . '" class="iconsmall" />';
                     $unreadlink .= '</a>';
                     $unreadlink .= '</span>';
-
                 } else {
                     // There are no unread messages for this moodleoverflow instance.
 
@@ -281,13 +272,11 @@
 
                     // Define the string.
                     $trackedlink = $string['yes'];
-
                 } else if ($moodleoverflow->trackingtype === MOODLEOVERFLOW_TRACKING_OFF) {
                     // Tracking is set to off.
 
                     // Define the string.
                     $trackedlink = '-';
-
                 } else {
                     // Tracking is optional.
 
@@ -334,7 +323,6 @@
 
         // Add the subscription information to the rows.
         if ($showsubscriptioncolumns) {
-
             // Set options to create the subscription link.
             $suboptions = [
                 'subscribed' => $string['yes'],
@@ -344,8 +332,11 @@
             ];
 
             // Add the subscription link to the row.
-            $row[] = \mod_moodleoverflow\subscriptions::moodleoverflow_get_subscribe_link($moodleoverflow,
-                $modulecontext, $suboptions);
+            $row[] = \mod_moodleoverflow\subscriptions::moodleoverflow_get_subscribe_link(
+                $moodleoverflow,
+                $modulecontext,
+                $suboptions
+            );
         }
 
         // Add the rows to the table.
@@ -365,7 +356,6 @@
 
 // Show the subscribe all option only to non-guest and enrolled users.
 if (!isguestuser() && isloggedin() && $showsubscriptioncolumns) {
-
     // Create a box.
     echo $OUTPUT->box_start('subscription');
 
diff --git a/lib.php b/lib.php
index ac849241aa0..7ce8cd3c638 100644
--- a/lib.php
+++ b/lib.php
@@ -154,7 +154,6 @@ function moodleoverflow_instance_created($context, $moodleoverflow) {
 
     // Check if users are forced to be subscribed to the moodleoverflow instance.
     if ($moodleoverflow->forcesubscribe == MOODLEOVERFLOW_INITIALSUBSCRIBE) {
-
         // Get a list of all potential subscribers.
         $users = \mod_moodleoverflow\subscriptions::get_potential_subscribers($context, 'u.id, u.email');
 
@@ -494,7 +493,6 @@ function moodleoverflow_extend_settings_navigation(settings_navigation $settings
 
     // Display a link to the index.
     if ($enrolled && $activeenrolled) {
-
         // Generate the text of the link.
         $linktext = get_string('gotoindex', 'moodleoverflow');
 
@@ -509,7 +507,6 @@ function moodleoverflow_extend_settings_navigation(settings_navigation $settings
 
     // Display a link to subscribe or unsubscribe.
     if ($cansubscribe) {
-
         // Choose the linktext depending on the current state of subscription.
         $issubscribed = \mod_moodleoverflow\subscriptions::is_subscribed($USER->id, $moodleoverflow, $context);
         if ($issubscribed) {
@@ -525,7 +522,6 @@ function moodleoverflow_extend_settings_navigation(settings_navigation $settings
 
     // Display a link to enable or disable readtracking.
     if ($enrolled && $cantrack) {
-
         // Check some basic capabilities.
         $isoptional = ($moodleoverflow->trackingtype == MOODLEOVERFLOW_TRACKING_OPTIONAL);
         $forceallowed = get_config('moodleoverflow', 'allowforcedreadtracking');
@@ -533,7 +529,6 @@ function moodleoverflow_extend_settings_navigation(settings_navigation $settings
 
         // Check whether the readtracking state can be changed.
         if ($isoptional || (!$forceallowed && $isforced)) {
-
             // Generate the text of the link depending on the current state.
             $istracked = \mod_moodleoverflow\readtracking::moodleoverflow_is_tracked($moodleoverflow);
             if ($istracked) {
@@ -568,15 +563,13 @@ function moodleoverflow_get_context($moodleoverflowid, $context = null) {
 
     // If the context does not exist, find the context.
     if (!$context || !($context instanceof context_module)) {
-
         // Try to take current page context to save on DB query.
-        if ($PAGE->cm && $PAGE->cm->modname === 'moodleoverflow' && $PAGE->cm->instance == $moodleoverflowid
+        if (
+            $PAGE->cm && $PAGE->cm->modname === 'moodleoverflow' && $PAGE->cm->instance == $moodleoverflowid
             && $PAGE->context->contextlevel == CONTEXT_MODULE && $PAGE->context->instanceid == $PAGE->cm->id
         ) {
             $context = $PAGE->context;
-
         } else {
-
             // Get the context via the coursemodule.
             $cm = get_coursemodule_from_instance('moodleoverflow', $moodleoverflowid);
             $context = \context_module::instance($cm->id);
@@ -633,7 +626,8 @@ function moodleoverflow_cm_info_view(cm_info $cm) {
  */
 function moodleoverflow_can_create_attachment($moodleoverflow, $context) {
     // If maxbytes == 1 it means no attachments at all.
-    if (empty($moodleoverflow->maxattachments) || $moodleoverflow->maxbytes == 1 ||
+    if (
+        empty($moodleoverflow->maxattachments) || $moodleoverflow->maxbytes == 1 ||
         !has_capability('mod/moodleoverflow:createattachment', $context)
     ) {
         return false;
@@ -650,7 +644,7 @@ function moodleoverflow_can_create_attachment($moodleoverflow, $context) {
  *
  * @return array array of grades
  */
-function moodleoverflow_get_user_grades($moodleoverflow, $userid=0) {
+function moodleoverflow_get_user_grades($moodleoverflow, $userid = 0) {
     global $CFG, $DB;
 
     $params = ["moodleoverflowid" => $moodleoverflow->id];
@@ -677,25 +671,20 @@ function moodleoverflow_get_user_grades($moodleoverflow, $userid=0) {
  */
 function moodleoverflow_update_grades($moodleoverflow, $userid, $nullifnone = null) {
     global $CFG;
-    require_once($CFG->libdir.'/gradelib.php');
+    require_once($CFG->libdir . '/gradelib.php');
 
     // Try to get the grades to update.
     if ($grades = moodleoverflow_get_user_grades($moodleoverflow, $userid)) {
-
         moodleoverflow_grade_item_update($moodleoverflow, $grades);
-
     } else if ($userid && $nullifnone) {
-
         // Insert a grade with rawgrade = null. As described in Gradebook API.
         $grade = new stdClass();
         $grade->userid = $userid;
         $grade->rawgrade = null;
         moodleoverflow_grade_item_update($moodleoverflow, $grade);
-
     } else {
         moodleoverflow_grade_item_update($moodleoverflow);
     }
-
 }
 
 /**
@@ -706,23 +695,21 @@ function moodleoverflow_update_grades($moodleoverflow, $userid, $nullifnone = nu
  *
  * @return int grade_update function success code
  */
-function moodleoverflow_grade_item_update($moodleoverflow, $grades=null) {
+function moodleoverflow_grade_item_update($moodleoverflow, $grades = null) {
     global $CFG, $DB;
 
     if (!function_exists('grade_update')) { // Workaround for buggy PHP versions.
-        require_once($CFG->libdir.'/gradelib.php');
+        require_once($CFG->libdir . '/gradelib.php');
     }
 
     $params = ['itemname' => $moodleoverflow->name, 'idnumber' => $moodleoverflow->id];
 
     if ($moodleoverflow->grademaxgrade <= 0) {
         $params['gradetype'] = GRADE_TYPE_NONE;
-
     } else if ($moodleoverflow->grademaxgrade > 0) {
         $params['gradetype'] = GRADE_TYPE_VALUE;
         $params['grademax'] = $moodleoverflow->grademaxgrade;
         $params['grademin'] = 0;
-
     }
 
     if ($grades === 'reset') {
@@ -730,8 +717,16 @@ function moodleoverflow_grade_item_update($moodleoverflow, $grades=null) {
         $grades = null;
     }
 
-    $gradeupdate = grade_update('mod/moodleoverflow', $moodleoverflow->course, 'mod', 'moodleoverflow',
-            $moodleoverflow->id, 0, $grades, $params);
+    $gradeupdate = grade_update(
+        'mod/moodleoverflow',
+        $moodleoverflow->course,
+        'mod',
+        'moodleoverflow',
+        $moodleoverflow->id,
+        0,
+        $grades,
+        $params
+    );
 
     // Modify grade item category id.
     if (!is_null($moodleoverflow->gradecat) && $moodleoverflow->gradecat > 0) {
diff --git a/locallib.php b/locallib.php
index f049731883e..1c103b0e9d3 100644
--- a/locallib.php
+++ b/locallib.php
@@ -79,8 +79,13 @@ function moodleoverflow_get_discussions($cm, $page = -1, $perpage = 0) {
     $userdata = 'u.email, u.picture, u.imagealt';
 
     if ($CFG->branch >= 311) {
-        $usermodifiedfields = \core_user\fields::for_name()->get_sql('um', false, 'um',
-                '', false)->selects .
+        $usermodifiedfields = \core_user\fields::for_name()->get_sql(
+            'um',
+            false,
+            'um',
+            '',
+            false
+        )->selects .
             ', um.email AS umemail, um.picture AS umpicture, um.imagealt AS umimagealt';
     } else {
         $usermodifiedfields = get_all_user_name_fields(true, 'um', null, 'um') .
@@ -187,7 +192,8 @@ function moodleoverflow_print_latest_discussions($moodleoverflow, $cm, $page = -
     }
 
     if ($markallread && $unreads) {
-        echo html_writer::link(new moodle_url($markallread),
+        echo html_writer::link(
+            new moodle_url($markallread),
             get_string('markallread_forum', 'mod_moodleoverflow'),
             ['class' => 'btn btn-secondary my-2']
         );
@@ -198,7 +204,6 @@ function moodleoverflow_print_latest_discussions($moodleoverflow, $cm, $page = -
 
     // If we want paging.
     if ($page != -1) {
-
         // Get the number of discussions.
         $numberofdiscussions = moodleoverflow_get_discussions_count($cm);
 
@@ -211,8 +216,10 @@ function moodleoverflow_print_latest_discussions($moodleoverflow, $cm, $page = -
 
     // Check whether the user can subscribe to the discussion.
     $cansubtodiscussion = false;
-    if ((!is_guest($context, $USER) && isloggedin()) && has_capability('mod/moodleoverflow:viewdiscussion', $context)
-                                    && \mod_moodleoverflow\subscriptions::is_subscribable($moodleoverflow, $context)) {
+    if (
+        (!is_guest($context, $USER) && isloggedin()) && has_capability('mod/moodleoverflow:viewdiscussion', $context)
+                                    && \mod_moodleoverflow\subscriptions::is_subscribable($moodleoverflow, $context)
+    ) {
         $cansubtodiscussion = true;
     }
 
@@ -318,7 +325,6 @@ function moodleoverflow_print_latest_discussions($moodleoverflow, $cm, $page = -
                 // Needs to be included for reputation to update properly.
                 $preparedarray[$i]['userlink'] = $CFG->wwwroot . '/user/view.php?id=' .
                     $discussion->userid . '&course=' . $moodleoverflow->course;
-
             } else {
                 $preparedarray[$i]['username'] = get_string('privacy:anonym_user_name', 'mod_moodleoverflow');
                 $preparedarray[$i]['userlink'] = null;
@@ -377,7 +383,10 @@ function moodleoverflow_print_latest_discussions($moodleoverflow, $cm, $page = -
             // Discussion subscription.
             if (\mod_moodleoverflow\subscriptions::is_subscribable($moodleoverflow, $context)) {
                 $preparedarray[$i]['discussionsubicon'] = \mod_moodleoverflow\subscriptions::get_discussion_subscription_icon(
-                    $moodleoverflow, $context, $discussion->discussion);
+                    $moodleoverflow,
+                    $context,
+                    $discussion->discussion
+                );
             }
         }
 
@@ -642,7 +651,6 @@ function moodleoverflow_get_discussions_unread($cm) {
         }
         return $returnarray;
     } else {
-
         // If there are no unread messages, return an empty array.
         return [];
     }
@@ -733,14 +741,15 @@ function moodleoverflow_user_can_see_post($moodleoverflow, $discussion, $post, $
         return false;
     }
 
-    if (!($post->reviewed == 1 || $post->userid == $USER->id ||
-        capabilities::has(capabilities::REVIEW_POST, $modulecontext))) {
+    if (
+        !($post->reviewed == 1 || $post->userid == $USER->id ||
+        capabilities::has(capabilities::REVIEW_POST, $modulecontext))
+    ) {
         return false;
     }
 
     // The user has the capability to see the discussion.
     return \core_availability\info_module::is_user_visible($cm, $USER->id, false);
-
 }
 
 /**
@@ -826,16 +835,25 @@ function moodleoverflow_add_discussion($discussion, $modulecontext, $userid = nu
     $post->course = $moodleoverflow->course;
 
     // Set to not reviewed, if questions should be reviewed, and user is not a reviewer themselves.
-    if (review::get_review_level($moodleoverflow) >= review::QUESTIONS &&
-            !capabilities::has(capabilities::REVIEW_POST, $modulecontext, $userid)) {
+    if (
+        review::get_review_level($moodleoverflow) >= review::QUESTIONS &&
+            !capabilities::has(capabilities::REVIEW_POST, $modulecontext, $userid)
+    ) {
         $post->reviewed = 0;
     }
 
     // Submit the post to the database and get its id.
     $post->id = $DB->insert_record('moodleoverflow_posts', $post);
     // Save draft files to permanent file area.
-    $post->message = file_save_draft_area_files($discussion->draftideditor, $context->id, 'mod_moodleoverflow', 'post',
-            $post->id, mod_forum_post_form::editor_options($context, null), $post->message);
+    $post->message = file_save_draft_area_files(
+        $discussion->draftideditor,
+        $context->id,
+        'mod_moodleoverflow',
+        'post',
+        $post->id,
+        mod_forum_post_form::editor_options($context, null),
+        $post->message
+    );
     $DB->set_field('moodleoverflow_posts', 'message', $post->message, ['id' => $post->id]);
 
     // Create the discussion object.
@@ -934,8 +952,15 @@ function moodleoverflow_user_can_post($modulecontext, $posttoreplyto, $considerr
  * @param bool     $multiplemarks       The setting of multiplemarks (default: multiplemarks are not allowed)
  * @param stdClass|null $limitedanswersetting Two Unix timestamp wrapped in a stdClass, upper and lower label for answering.
  */
-function moodleoverflow_print_discussion($course, $cm, $moodleoverflow, $discussion, $post,
-                                         $multiplemarks = false, ?stdClass $limitedanswersetting = null) {
+function moodleoverflow_print_discussion(
+    $course,
+    $cm,
+    $moodleoverflow,
+    $discussion,
+    $post,
+    $multiplemarks = false,
+    ?stdClass $limitedanswersetting = null
+) {
     global $USER, $DB;
     // Check if the current is the starter of the discussion.
     $ownpost = (isloggedin() && ($USER->id == $post->userid));
@@ -959,17 +984,14 @@ function moodleoverflow_print_discussion($course, $cm, $moodleoverflow, $discuss
     // Lets clear all posts above level 2.
     // Check if there are answers.
     if (isset($post->children)) {
-
         // Itereate through all answers.
         foreach ($post->children as $aid => $a) {
             $answercount += 1;
 
             // Check for each answer if they have children as well.
             if (isset($post->children[$aid]->children)) {
-
                 // Iterate through all comments.
                 foreach ($post->children[$aid]->children as $cid => $c) {
-
                     // Delete the children of the comments.
                     if (isset($post->children[$aid]->children[$cid]->children)) {
                         unset($post->children[$aid]->children[$cid]->children);
@@ -987,8 +1009,25 @@ function moodleoverflow_print_discussion($course, $cm, $moodleoverflow, $discuss
     $postread = !empty($post->postread);
 
     // Print the starting post.
-    echo moodleoverflow_print_post($post, $discussion, $moodleoverflow, $cm, $course,
-        $ownpost, false, '', '', $postread, true, $istracked, 0, $usermapping, 0, $multiplemarks, $limitedanswersetting);
+    echo moodleoverflow_print_post(
+        $post,
+        $discussion,
+        $moodleoverflow,
+        $cm,
+        $course,
+        $ownpost,
+        false,
+        '',
+        '',
+        $postread,
+        true,
+        $istracked,
+        0,
+        $usermapping,
+        0,
+        $multiplemarks,
+        $limitedanswersetting
+    );
 
     // Print answer divider.
     if ($answercount == 1) {
@@ -1001,8 +1040,19 @@ function moodleoverflow_print_discussion($course, $cm, $moodleoverflow, $discuss
     echo '<div id="moodleoverflow-posts">';
 
     // Print the other posts.
-    echo moodleoverflow_print_posts_nested($course, $cm, $moodleoverflow, $discussion, $post, $istracked, $posts,
-        null, $usermapping, $multiplemarks, $limitedanswersetting);
+    echo moodleoverflow_print_posts_nested(
+        $course,
+        $cm,
+        $moodleoverflow,
+        $discussion,
+        $post,
+        $istracked,
+        $posts,
+        null,
+        $usermapping,
+        $multiplemarks,
+        $limitedanswersetting
+    );
 
     echo '</div>';
 }
@@ -1067,7 +1117,6 @@ function moodleoverflow_get_all_discussion_posts($discussionid, $tracking, $modc
 
     // Assign ratings to the posts.
     foreach ($posts as $postid => $post) {
-
         // Assign the ratings to the matching posts.
         $posts[$postid]->upvotes = $discussionratings[$post->id]->upvotes;
         $posts[$postid]->downvotes = $discussionratings[$post->id]->downvotes;
@@ -1081,7 +1130,6 @@ function moodleoverflow_get_all_discussion_posts($discussionid, $tracking, $modc
 
     // Find all children of this post.
     foreach ($posts as $postid => $post) {
-
         // Is it an old post?
         if ($tracking) {
             if (readtracking::moodleoverflow_is_old_post($post)) {
@@ -1140,12 +1188,25 @@ function moodleoverflow_get_all_discussion_posts($discussionid, $tracking, $modc
  * @throws dml_exception
  * @throws moodle_exception
  */
-function moodleoverflow_print_post($post, $discussion, $moodleoverflow, $cm, $course,
-                                   $ownpost = false, $link = false,
-                                   $footer = '', $highlight = '', $postisread = null,
-                                   $dummyifcantsee = true, $istracked = false,
-                                   $iscomment = false, $usermapping = [], $level = 0,
-                                   $multiplemarks = false, ?stdClass $limitedanswersetting = null) {
+function moodleoverflow_print_post(
+    $post,
+    $discussion,
+    $moodleoverflow,
+    $cm,
+    $course,
+    $ownpost = false,
+    $link = false,
+    $footer = '',
+    $highlight = '',
+    $postisread = null,
+    $dummyifcantsee = true,
+    $istracked = false,
+    $iscomment = false,
+    $usermapping = [],
+    $level = 0,
+    $multiplemarks = false,
+    ?stdClass $limitedanswersetting = null
+) {
     global $USER, $CFG, $OUTPUT, $PAGE, $DB;
 
     // Require the filelib.
@@ -1173,7 +1234,6 @@ function moodleoverflow_print_post($post, $discussion, $moodleoverflow, $cm, $co
 
     // Check if the user has the capability to see posts.
     if (!moodleoverflow_user_can_see_post($moodleoverflow, $discussion, $post, $cm)) {
-
         // No dummy message is requested.
         if (!$dummyifcantsee) {
             echo '';
@@ -1259,16 +1319,25 @@ function moodleoverflow_print_post($post, $discussion, $moodleoverflow, $cm, $co
         // When the post is already marked, remove the mark instead.
         $link = '/mod/moodleoverflow/discussion.php';
         if ($post->markedhelpful) {
-            $commands[] = html_writer::tag('a', $str->marknothelpful,
-                    ['class' => 'markhelpful onlyifreviewed', 'role' => 'button', 'data-moodleoverflow-action' => 'helpful']);
+            $commands[] = html_writer::tag(
+                'a',
+                $str->marknothelpful,
+                ['class' => 'markhelpful onlyifreviewed', 'role' => 'button', 'data-moodleoverflow-action' => 'helpful']
+            );
         } else {
             // If there are already marked posts, change the string of the button.
             if ($helpfulposts) {
-                $commands[] = html_writer::tag('a', $str->alsomarkhelpful,
-                    ['class' => 'markhelpful onlyifreviewed', 'role' => 'button', 'data-moodleoverflow-action' => 'helpful']);
+                $commands[] = html_writer::tag(
+                    'a',
+                    $str->alsomarkhelpful,
+                    ['class' => 'markhelpful onlyifreviewed', 'role' => 'button', 'data-moodleoverflow-action' => 'helpful']
+                );
             } else {
-                $commands[] = html_writer::tag('a', $str->markhelpful,
-                    ['class' => 'markhelpful onlyifreviewed', 'role' => 'button', 'data-moodleoverflow-action' => 'helpful']);
+                $commands[] = html_writer::tag(
+                    'a',
+                    $str->markhelpful,
+                    ['class' => 'markhelpful onlyifreviewed', 'role' => 'button', 'data-moodleoverflow-action' => 'helpful']
+                );
             }
         }
     }
@@ -1277,20 +1346,28 @@ function moodleoverflow_print_post($post, $discussion, $moodleoverflow, $cm, $co
     $canmarksolved = (($iscomment != $post->parent) && !empty($post->parent)
                                                     && capabilities::has(capabilities::MARK_SOLVED, $modulecontext));
     if ($canmarksolved) {
-
         // When the post is already marked, remove the mark instead.
         $link = '/mod/moodleoverflow/discussion.php';
         if ($post->markedsolution) {
-            $commands[] = html_writer::tag('a', $str->marknotsolved,
-                    ['class' => 'marksolved onlyifreviewed', 'role' => 'button', 'data-moodleoverflow-action' => 'solved']);
+            $commands[] = html_writer::tag(
+                'a',
+                $str->marknotsolved,
+                ['class' => 'marksolved onlyifreviewed', 'role' => 'button', 'data-moodleoverflow-action' => 'solved']
+            );
         } else {
             // If there are already marked posts, change the string of the button.
             if ($solvedposts) {
-                $commands[] = html_writer::tag('a', $str->alsomarksolved,
-                    ['class' => 'marksolved onlyifreviewed', 'role' => 'button', 'data-moodleoverflow-action' => 'solved']);
+                $commands[] = html_writer::tag(
+                    'a',
+                    $str->alsomarksolved,
+                    ['class' => 'marksolved onlyifreviewed', 'role' => 'button', 'data-moodleoverflow-action' => 'solved']
+                );
             } else {
-                $commands[] = html_writer::tag('a', $str->marksolved,
-                    ['class' => 'marksolved onlyifreviewed', 'role' => 'button', 'data-moodleoverflow-action' => 'solved']);
+                $commands[] = html_writer::tag(
+                    'a',
+                    $str->marksolved,
+                    ['class' => 'marksolved onlyifreviewed', 'role' => 'button', 'data-moodleoverflow-action' => 'solved']
+                );
             }
         }
     }
@@ -1299,9 +1376,12 @@ function moodleoverflow_print_post($post, $discussion, $moodleoverflow, $cm, $co
     $age = time() - $post->created;
 
     // Make a link to edit your own post within the given time and not already reviewed.
-    if (($ownpost && ($age < get_config('moodleoverflow', 'maxeditingtime')) &&
-                    (!review::should_post_be_reviewed($post, $moodleoverflow) || !$post->reviewed))
-        || capabilities::has(capabilities::EDIT_ANY_POST, $modulecontext)
+    if (
+        ($ownpost &&
+        ($age < get_config('moodleoverflow', 'maxeditingtime')) &&
+                    (!review::should_post_be_reviewed($post, $moodleoverflow) ||
+                    !$post->reviewed)) ||
+        capabilities::has(capabilities::EDIT_ANY_POST, $modulecontext)
     ) {
         $editurl = new moodle_url('/mod/moodleoverflow/post.php', ['edit' => $post->id]);
         $commands[] = ['url' => $editurl, 'text' => $str->edit];
@@ -1309,9 +1389,10 @@ function moodleoverflow_print_post($post, $discussion, $moodleoverflow, $cm, $co
 
     // Give the option to delete a post.
     $notold = ($age < get_config('moodleoverflow', 'maxeditingtime'));
-    if (($ownpost && $notold && capabilities::has(capabilities::DELETE_OWN_POST, $modulecontext)) ||
-        capabilities::has(capabilities::DELETE_ANY_POST, $modulecontext)) {
-
+    if (
+        ($ownpost && $notold && capabilities::has(capabilities::DELETE_OWN_POST, $modulecontext)) ||
+        capabilities::has(capabilities::DELETE_ANY_POST, $modulecontext)
+    ) {
         $link = '/mod/moodleoverflow/post.php';
         $commands[] = ['url' => new moodle_url($link, ['delete' => $post->id]), 'text' => $str->delete];
     }
@@ -1326,10 +1407,16 @@ function moodleoverflow_print_post($post, $discussion, $moodleoverflow, $cm, $co
             // Check if limitedanswertime is on.
             $settingexist = $limitedanswersetting->la_starttime != 0 || $limitedanswersetting->la_endtime != 0;
             if ($settingexist) {
-                $infolimited = $limitedanswersetting->la_starttime ? " " . get_string('la_info_starttime',
-                        'moodleoverflow', ['limitedanswerdate' => date('d.m.Y H:i', $limitedanswersetting->la_starttime)]) : '';
-                $infolimited .= $limitedanswersetting->la_endtime ? " " . get_string('la_info_endtime', 'moodleoverflow',
-                        ['limitedanswerdate' => date('d.m.Y H:i', $limitedanswersetting->la_endtime)]) : '';
+                $infolimited = $limitedanswersetting->la_starttime ? " " . get_string(
+                    'la_info_starttime',
+                    'moodleoverflow',
+                    ['limitedanswerdate' => date('d.m.Y H:i', $limitedanswersetting->la_starttime)]
+                ) : '';
+                $infolimited .= $limitedanswersetting->la_endtime ? " " . get_string(
+                    'la_info_endtime',
+                    'moodleoverflow',
+                    ['limitedanswerdate' => date('d.m.Y H:i', $limitedanswersetting->la_endtime)]
+                ) : '';
                 echo html_writer::div($infolimited, 'alert alert-warning', ['role' => 'alert']);
             }
             if (is_currently_time_limited($limitedanswersetting)) {
@@ -1384,7 +1471,6 @@ function moodleoverflow_print_post($post, $discussion, $moodleoverflow, $cm, $co
 
     // Check the actual rating.
     if ($rating) {
-
         // Convert the object.
         $rating = $rating->rating;
 
@@ -1478,8 +1564,14 @@ function moodleoverflow_print_post($post, $discussion, $moodleoverflow, $cm, $co
     $mustachedata->withinreviewperiod = $reviewable;
 
     // Prepare the post.
-    $post->message = file_rewrite_pluginfile_urls($post->message, 'pluginfile.php', $mcid, 'mod_moodleoverflow',
-                                        'post', $post->id);
+    $post->message = file_rewrite_pluginfile_urls(
+        $post->message,
+        'pluginfile.php',
+        $mcid,
+        'mod_moodleoverflow',
+        'post',
+        $post->id
+    );
     $options = new stdClass();
     $options->para = false;
     $options->newlines = true;
@@ -1556,7 +1648,7 @@ function render_limited_answer(string $htmlattributes, array &$commands, string
     $limitedanswerobject = html_writer::tag('span', $helpstring . '    ' . $helpicon);
 
     // Save the span in the commands with an extra value.
-    $commands[] = ['text' => $limitedanswerobject, 'attributes' => $limitedanswerattributes,  'limitedanswer' => $role];
+    $commands[] = ['text' => $limitedanswerobject, 'attributes' => $limitedanswerattributes, 'limitedanswer' => $role];
 }
 
 /**
@@ -1578,9 +1670,19 @@ function render_limited_answer(string $htmlattributes, array &$commands, string
  * @throws dml_exception
  * @throws moodle_exception
  */
-function moodleoverflow_print_posts_nested($course, &$cm, $moodleoverflow, $discussion, $parent,
-                                           $istracked, $posts, $iscomment = null, $usermapping = [],
-                                           $multiplemarks = false, ?stdClass $limitedanswersetting = null) {
+function moodleoverflow_print_posts_nested(
+    $course,
+    &$cm,
+    $moodleoverflow,
+    $discussion,
+    $parent,
+    $istracked,
+    $posts,
+    $iscomment = null,
+    $usermapping = [],
+    $multiplemarks = false,
+    ?stdClass $limitedanswersetting = null
+) {
     global $USER;
 
     // Prepare the output.
@@ -1588,13 +1690,11 @@ function moodleoverflow_print_posts_nested($course, &$cm, $moodleoverflow, $disc
 
     // If there are answers.
     if (!empty($posts[$parent->id]->children)) {
-
         // We do not need the other parts of this variable anymore.
         $posts = $posts[$parent->id]->children;
 
         // Iterate through all answers.
         foreach ($posts as $post) {
-
             // Answers should be seperated from each other.
             // While comments should be indented.
             if (!isset($iscomment)) {
@@ -1621,13 +1721,40 @@ function moodleoverflow_print_posts_nested($course, &$cm, $moodleoverflow, $disc
             $postread = !empty($post->postread);
 
             // Print the answer.
-            $output .= moodleoverflow_print_post($post, $discussion, $moodleoverflow, $cm, $course, $ownpost, false, '', '',
-                                                 $postread, true, $istracked, $parentid, $usermapping, $level,
-                                                 $multiplemarks, $limitedanswersetting);
+            $output .= moodleoverflow_print_post(
+                $post,
+                $discussion,
+                $moodleoverflow,
+                $cm,
+                $course,
+                $ownpost,
+                false,
+                '',
+                '',
+                $postread,
+                true,
+                $istracked,
+                $parentid,
+                $usermapping,
+                $level,
+                $multiplemarks,
+                $limitedanswersetting
+            );
 
             // Print its children.
-            $output .= moodleoverflow_print_posts_nested($course, $cm, $moodleoverflow,
-                $discussion, $post, $istracked, $posts, $parentid, $usermapping, $multiplemarks, $limitedanswersetting);
+            $output .= moodleoverflow_print_posts_nested(
+                $course,
+                $cm,
+                $moodleoverflow,
+                $discussion,
+                $post,
+                $istracked,
+                $posts,
+                $parentid,
+                $usermapping,
+                $multiplemarks,
+                $limitedanswersetting
+            );
 
             // End the div.
             $output .= "</div>\n";
@@ -1671,11 +1798,20 @@ function get_attachments($post, $cm) {
             $attachments[$i]['filename'] = $file->get_filename();
 
             $mimetype = $file->get_mimetype();
-            $iconimage = $OUTPUT->pix_icon(file_file_icon($file),
-                get_mimetype_description($file), 'moodle',
-                ['class' => 'icon']);
-            $path = moodle_url::make_pluginfile_url($file->get_contextid(), $file->get_component(), $file->get_filearea(),
-                                                     $file->get_itemid(), $file->get_filepath(), $file->get_filename());
+            $iconimage = $OUTPUT->pix_icon(
+                file_file_icon($file),
+                get_mimetype_description($file),
+                'moodle',
+                ['class' => 'icon']
+            );
+            $path = moodle_url::make_pluginfile_url(
+                $file->get_contextid(),
+                $file->get_component(),
+                $file->get_filearea(),
+                $file->get_itemid(),
+                $file->get_filepath(),
+                $file->get_filename()
+            );
 
             $attachments[$i]['icon'] = $iconimage;
             $attachments[$i]['filepath'] = $path;
@@ -1712,8 +1848,14 @@ function moodleoverflow_add_attachment($post, $forum, $cm) {
 
     $info = file_get_draft_area_info($post->attachments);
     $present = ($info['filecount'] > 0) ? '1' : '';
-    file_save_draft_area_files($post->attachments, $context->id, 'mod_moodleoverflow', 'attachment', $post->id,
-        mod_moodleoverflow_post_form::attachment_options($forum));
+    file_save_draft_area_files(
+        $post->attachments,
+        $context->id,
+        'mod_moodleoverflow',
+        'attachment',
+        $post->id,
+        mod_moodleoverflow_post_form::attachment_options($forum)
+    );
 
     $DB->set_field('moodleoverflow_posts', 'attachment', $present, ['id' => $post->id]);
 
@@ -1746,8 +1888,10 @@ function moodleoverflow_add_new_post($post) {
     }
 
     // Set to not reviewed, if posts should be reviewed, and user is not a reviewer themselves.
-    if (review::get_review_level($moodleoverflow) == review::EVERYTHING &&
-            !has_capability('mod/moodleoverflow:reviewpost', $context)) {
+    if (
+        review::get_review_level($moodleoverflow) == review::EVERYTHING &&
+            !has_capability('mod/moodleoverflow:reviewpost', $context)
+    ) {
         $post->reviewed = 0;
     } else {
         $post->reviewed = 1;
@@ -1756,8 +1900,15 @@ function moodleoverflow_add_new_post($post) {
     // Add the post to the database.
     $post->id = $DB->insert_record('moodleoverflow_posts', $post);
     // Save draft files to permanent file area.
-    $post->message = file_save_draft_area_files($post->draftideditor, $context->id, 'mod_moodleoverflow', 'post',
-            $post->id, mod_forum_post_form::editor_options($context, null), $post->message);
+    $post->message = file_save_draft_area_files(
+        $post->draftideditor,
+        $context->id,
+        'mod_moodleoverflow',
+        'post',
+        $post->id,
+        mod_forum_post_form::editor_options($context, null),
+        $post->message
+    );
     $DB->set_field('moodleoverflow_posts', 'message', $post->message, ['id' => $post->id]);
     moodleoverflow_add_attachment($post, $moodleoverflow, $cm);
 
@@ -1796,13 +1947,11 @@ function moodleoverflow_delete_discussion($discussion, $course, $cm, $moodleover
 
     // Get all posts related to the discussion.
     if ($posts = $DB->get_records('moodleoverflow_posts', ['discussion' => $discussion->id])) {
-
         // Iterate through them and delete each one.
         foreach ($posts as $post) {
             $post->course = $discussion->course;
             $post->moodleoverflow = $discussion->moodleoverflow;
             if (!moodleoverflow_delete_post($post, 'ignore', $cm, $moodleoverflow)) {
-
                 // If the deletion failed, change the pointer.
                 $result = false;
             }
@@ -1860,12 +2009,24 @@ function moodleoverflow_delete_post($post, $deletechildren, $cm, $moodleoverflow
             // First delete the actual files on the disk.
             $fs = get_file_storage();
             $context = context_module::instance($cm->id);
-            $attachments = $fs->get_area_files($context->id, 'mod_moodleoverflow', 'attachment',
-                $post->id, "filename", true);
+            $attachments = $fs->get_area_files(
+                $context->id,
+                'mod_moodleoverflow',
+                'attachment',
+                $post->id,
+                "filename",
+                true
+            );
             foreach ($attachments as $attachment) {
                 // Get file.
-                $file = $fs->get_file($context->id, 'mod_moodleoverflow', 'attachment', $post->id,
-                    $attachment->get_filepath(), $attachment->get_filename());
+                $file = $fs->get_file(
+                    $context->id,
+                    'mod_moodleoverflow',
+                    'attachment',
+                    $post->id,
+                    $attachment->get_filepath(),
+                    $attachment->get_filename()
+                );
                 // Delete it if it exists.
                 if ($file) {
                     $file->delete();
@@ -1984,7 +2145,6 @@ function moodleoverflow_count_discussions($moodleoverflow, $course) {
 
     // Check whether the cache for the moodleoverflow is set.
     if (!isset($cache[$course->id])) {
-
         // Count the number of discussions.
         $sql = "SELECT m.id, COUNT(d.id) as dcount
                   FROM {moodleoverflow} m
@@ -1995,7 +2155,6 @@ function moodleoverflow_count_discussions($moodleoverflow, $course) {
 
         // Check whether there are discussions.
         if ($counts) {
-
             // Loop through all records.
             foreach ($counts as $count) {
                 $counts[$count->id] = $count->dcount;
@@ -2003,7 +2162,6 @@ function moodleoverflow_count_discussions($moodleoverflow, $course) {
 
             // Cache the course.
             $cache[$course->id] = $counts;
-
         } else {
             // There are no records.
 
@@ -2061,18 +2219,14 @@ function moodleoverflow_update_user_grade_on_db($moodleoverflow, $postuserrating
     $grade = $postuserrating / $moodleoverflow->gradescalefactor;
 
     if ($grade > $moodleoverflow->grademaxgrade) {
-
         $grade = $moodleoverflow->grademaxgrade;
     }
 
     // Save updated grade on local table.
     if ($DB->record_exists('moodleoverflow_grades', ['userid' => $userid, 'moodleoverflowid' => $moodleoverflow->id])) {
-
         $DB->set_field('moodleoverflow_grades', 'grade', $grade, ['userid' => $userid,
             'moodleoverflowid' => $moodleoverflow->id, ]);
-
     } else {
-
         $gradedataobject = new stdClass();
         $gradedataobject->moodleoverflowid = $moodleoverflow->id;
         $gradedataobject->userid = $userid;
@@ -2097,7 +2251,6 @@ function moodleoverflow_update_all_grades_for_cm($moodleoverflowid) {
 
     // Check whether moodleoverflow object has the added params.
     if ($moodleoverflow->grademaxgrade > 0 && $moodleoverflow->gradescalefactor > 0) {
-
         // Get all users id.
         $params = ['moodleoverflowid' => $moodleoverflowid, 'moodleoverflowid2' => $moodleoverflowid];
         $sql = 'SELECT DISTINCT u.userid FROM (
@@ -2158,7 +2311,7 @@ function moodleoverflow_quick_array_sort(&$array, $low, $high, $key, $order) {
     $right = $high;
     $pivot = $array[intval(($low + $high) / 2)]->$key;
 
-    $compare = function($a, $b) use ($order) {
+    $compare = function ($a, $b) use ($order) {
         if ($order == 'asc') {
             return $a < $b;
         } else {
diff --git a/markposts.php b/markposts.php
index 5753501e34e..72f8aedf426 100644
--- a/markposts.php
+++ b/markposts.php
@@ -65,19 +65,15 @@
 
 // Default relink address.
 if ($returndiscussion === 0) {
-
     // If no parameter is set, relink to the view.
     $returnto = new moodle_url("/mod/moodleoverflow/view.php", ['m' => $moodleoverflow->id]);
-
 } else {
-
     // Else relink back to the discussion we are coming from.
     $returnto = new moodle_url("/mod/moodleoverflow/discussion.php", ['d' => $returndiscussion]);
 }
 
 // Guests can't mark posts as read.
 if (isguestuser()) {
-
     // Set Page-Parameter.
     $PAGE->set_title($course->shortname);
     $PAGE->set_heading($course->fullname);
@@ -94,19 +90,21 @@
 
 // Delete a single discussion.
 if (!empty($discussionid)) {
-
     // Check if the discussion exists.
     $options = ['id' => $discussionid, 'moodleoverflow' => $moodleoverflow->id];
     $discussion = moodleoverflow_get_record_or_exception('moodleoverflow_discussions', $options, 'invaliddiscussionid');
 
     // Mark all the discussions read.
-    if (!\mod_moodleoverflow\readtracking::moodleoverflow_mark_discussion_read($discussionid,
-        context_module::instance($cm->id), $user->id)) {
-
+    if (
+        !\mod_moodleoverflow\readtracking::moodleoverflow_mark_discussion_read(
+            $discussionid,
+            context_module::instance($cm->id),
+            $user->id
+        )
+    ) {
         // Display an error, if something failes.
         $message = get_string('markreadfailed', 'moodleoverflow');
         $status = \core\output\notification::NOTIFY_ERROR;
-
     } else {
         // The discussion is successfully marked as read.
         $message = get_string('markmoodleoverflowreadsuccessful', 'moodleoverflow');
@@ -116,18 +114,13 @@
     // Redirect the user.
     redirect(moodleoverflow_go_back_to($returnto), $message, null, $status);
     exit;
-
 } else {
-
     // Mark all message read in the current instance.
     if (!\mod_moodleoverflow\readtracking::moodleoverflow_mark_moodleoverflow_read($cm, $user->id)) {
-
         // Display an error, if something fails.
         $message = get_string('markreadfailed', 'moodleoverflow');
         $status = \core\output\notification::NOTIFY_ERROR;
-
     } else {
-
         // All posts of the instance have been marked as read.
         $message = get_string('markdiscussionreadsuccessful', 'moodleoverflow');
         $status = \core\output\notification::NOTIFY_SUCCESS;
diff --git a/mod_form.php b/mod_form.php
index 81e5d35b3a2..106c422e987 100644
--- a/mod_form.php
+++ b/mod_form.php
@@ -40,7 +40,6 @@
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 class mod_moodleoverflow_mod_form extends moodleform_mod {
-
     /**
      * Defines forms elements.
      */
@@ -51,8 +50,11 @@ public function definition() {
         $mform = $this->_form;
 
         if ($this->get_instance()) {
-            $PAGE->requires->js_call_amd('mod_moodleoverflow/warnmodechange', 'init',
-                [$this->get_current()->forcesubscribe]);
+            $PAGE->requires->js_call_amd(
+                'mod_moodleoverflow/warnmodechange',
+                'init',
+                [$this->get_current()->forcesubscribe]
+            );
         }
 
         // Adding the "general" fieldset, where all the common settings are showed.
@@ -169,8 +171,11 @@ public function definition() {
         $mform->setDefault('trackingtype', $default);
 
         // Grade options.
-        $mform->addElement('header', 'gradeheading',
-            $CFG->branch >= 311 ? get_string('gradenoun') : get_string('grade'));
+        $mform->addElement(
+            'header',
+            'gradeheading',
+            $CFG->branch >= 311 ? get_string('gradenoun') : get_string('grade')
+        );
 
         $mform->addElement('text', 'grademaxgrade', get_string('modgrademaxgrade', 'grades'));
         $mform->setType('grademaxgrade', PARAM_INT);
@@ -183,7 +188,8 @@ public function definition() {
 
         if ($this->_features->gradecat) {
             $mform->addElement(
-                'select', 'gradecat',
+                'select',
+                'gradecat',
                 get_string('gradecategoryonmodform', 'grades'),
                 grade_get_categories_menu($COURSE->id, $this->_outcomesused)
             );
@@ -254,14 +260,22 @@ public function definition() {
         // Limited answer setting elements..
         $mform->addElement('hidden', 'la_answersfound', $answersfound);
         $mform->setType('la_answersfound', PARAM_BOOL);
-        $mform->addElement('date_time_selector', 'la_starttime', get_string('la_starttime', 'moodleoverflow'),
-                ['optional' => true]);
+        $mform->addElement(
+            'date_time_selector',
+            'la_starttime',
+            get_string('la_starttime', 'moodleoverflow'),
+            ['optional' => true]
+        );
 
         $mform->addHelpButton('la_starttime', 'la_starttime', 'moodleoverflow');
         $mform->disabledIf('la_starttime', 'la_answersfound', 'eq', true);
 
-        $mform->addElement('date_time_selector', 'la_endtime', get_string('la_endtime', 'moodleoverflow'),
-            ['optional' => true]);
+        $mform->addElement(
+            'date_time_selector',
+            'la_endtime',
+            get_string('la_endtime', 'moodleoverflow'),
+            ['optional' => true]
+        );
 
         $mform->addHelpButton('la_endtime', 'la_endtime', 'moodleoverflow');
 
diff --git a/post.php b/post.php
index 2a304f0d937..2e2e42d386d 100644
--- a/post.php
+++ b/post.php
@@ -69,8 +69,11 @@
     // The guest needs to login.
     $strlogin = get_string('noguestpost', 'forum') . '<br /><br />' . get_string('liketologin');
     echo $OUTPUT->header();
-    echo $OUTPUT->confirm($strlogin, get_login_url(),
-                          $CFG->wwwroot . '/mod/moodleoverflow/view.php?m= ' . $information->moodleoverflow->id);
+    echo $OUTPUT->confirm(
+        $strlogin,
+        get_login_url(),
+        $CFG->wwwroot . '/mod/moodleoverflow/view.php?m= ' . $information->moodleoverflow->id
+    );
     echo $OUTPUT->footer();
     exit;
 }
@@ -106,15 +109,19 @@
         $information = $postcontrol->get_information();
         echo $OUTPUT->header();
         if ($information->deletetype == 'plural') {
-            echo $OUTPUT->confirm(get_string('deletesureplural', 'moodleoverflow', $information->replycount + 1),
-                                  'post.php?delete='.$delete.'&confirm='.$delete,
-                                  $CFG->wwwroot . '/mod/moodleoverflow/discussion.php?d=' . $information->discussion->get_id() .
-                                   '#p' . $information->relatedpost->get_id());
+            echo $OUTPUT->confirm(
+                get_string('deletesureplural', 'moodleoverflow', $information->replycount + 1),
+                'post.php?delete=' . $delete . '&confirm=' . $delete,
+                $CFG->wwwroot . '/mod/moodleoverflow/discussion.php?d=' . $information->discussion->get_id() .
+                '#p' . $information->relatedpost->get_id()
+            );
         } else {
-            echo $OUTPUT->confirm(get_string('deletesure', 'moodleoverflow', $information->replycount),
+            echo $OUTPUT->confirm(
+                get_string('deletesure', 'moodleoverflow', $information->replycount),
                 "post.php?delete=$delete&confirm=$delete",
                 $CFG->wwwroot . '/mod/moodleoverflow/discussion.php?d=' . $information->discussion->get_id() .
-                 '#p' . $information->relatedpost->get_id());
+                '#p' . $information->relatedpost->get_id()
+            );
         }
         echo $OUTPUT->footer();
     }
diff --git a/renderer.php b/renderer.php
index 905bc3d12d4..293f010f17d 100644
--- a/renderer.php
+++ b/renderer.php
@@ -35,7 +35,6 @@
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 class mod_moodleoverflow_renderer extends plugin_renderer_base {
-
     /**
      * Display the discussion list for the view.php.
      *
diff --git a/resetanonymous.php b/resetanonymous.php
index f130b333924..cd33bcf84d1 100644
--- a/resetanonymous.php
+++ b/resetanonymous.php
@@ -39,14 +39,21 @@
 
 if ($confirmed !== 1) {
     $a = new stdClass();
-    $a->fullanoncount = $DB->count_records('moodleoverflow',
-        ['anonymous' => anonymous::EVERYTHING_ANONYMOUS]);
-    $a->questionanoncount = $DB->count_records('moodleoverflow',
-        ['anonymous' => anonymous::QUESTION_ANONYMOUS]);
+    $a->fullanoncount = $DB->count_records(
+        'moodleoverflow',
+        ['anonymous' => anonymous::EVERYTHING_ANONYMOUS]
+    );
+    $a->questionanoncount = $DB->count_records(
+        'moodleoverflow',
+        ['anonymous' => anonymous::QUESTION_ANONYMOUS]
+    );
     echo $OUTPUT->header();
     echo html_writer::div(
-        $OUTPUT->confirm(get_string('resetanonymous_warning', 'moodleoverflow', $a),
-            new moodle_url($PAGE->url, ['confirmed' => true, 'sesskey' => sesskey()]), $returnurl),
+        $OUTPUT->confirm(
+            get_string('resetanonymous_warning', 'moodleoverflow', $a),
+            new moodle_url($PAGE->url, ['confirmed' => true, 'sesskey' => sesskey()]),
+            $returnurl
+        ),
         'mod_moodleoverflow-hack-primary-to-danger-btn'
     );
     echo $OUTPUT->footer();
diff --git a/settings.php b/settings.php
index 73941449f6b..da5fe39d854 100644
--- a/settings.php
+++ b/settings.php
@@ -25,28 +25,47 @@
 defined('MOODLE_INTERNAL') || die;
 
 if ($ADMIN->fulltree) {
-
     require_once($CFG->dirroot . '/mod/moodleoverflow/lib.php');
 
     // Number of discussions per page.
-    $settings->add(new admin_setting_configtext('moodleoverflow/manydiscussions', get_string('manydiscussions', 'moodleoverflow'),
-        get_string('configmanydiscussions', 'moodleoverflow'), 10, PARAM_INT));
+    $settings->add(new admin_setting_configtext(
+        'moodleoverflow/manydiscussions',
+        get_string('manydiscussions', 'moodleoverflow'),
+        get_string('configmanydiscussions', 'moodleoverflow'),
+        10,
+        PARAM_INT
+    ));
 
     if (isset($CFG->maxbytes)) {
         $maxbytes = 0;
         if (get_config('moodleoverflow', 'maxbytes')) {
             $maxbytes = get_config('moodleoverflow', 'maxbytes');
         }
-        $settings->add(new admin_setting_configselect('moodleoverflow/maxbytes', get_string('maxattachmentsize', 'moodleoverflow'),
-            get_string('configmaxbytes', 'moodleoverflow'), 512000, get_max_upload_sizes($CFG->maxbytes, 0, 0, $maxbytes)));
+        $settings->add(new admin_setting_configselect(
+            'moodleoverflow/maxbytes',
+            get_string('maxattachmentsize', 'moodleoverflow'),
+            get_string('configmaxbytes', 'moodleoverflow'),
+            512000,
+            get_max_upload_sizes($CFG->maxbytes, 0, 0, $maxbytes)
+        ));
     }
 
     // Default number of attachments allowed per post in all moodlevoerflows.
-    $settings->add(new admin_setting_configtext('moodleoverflow/maxattachments', get_string('maxattachments', 'moodleoverflow'),
-        get_string('configmaxattachments', 'moodleoverflow'), 9, PARAM_INT));
+    $settings->add(new admin_setting_configtext(
+        'moodleoverflow/maxattachments',
+        get_string('maxattachments', 'moodleoverflow'),
+        get_string('configmaxattachments', 'moodleoverflow'),
+        9,
+        PARAM_INT
+    ));
 
-    $settings->add(new admin_setting_configtext('moodleoverflow/maxeditingtime', get_string('maxeditingtime', 'moodleoverflow'),
-        get_string('configmaxeditingtime', 'moodleoverflow'), 3600, PARAM_INT));
+    $settings->add(new admin_setting_configtext(
+        'moodleoverflow/maxeditingtime',
+        get_string('maxeditingtime', 'moodleoverflow'),
+        get_string('configmaxeditingtime', 'moodleoverflow'),
+        3600,
+        PARAM_INT
+    ));
 
 
     // Default read tracking settings.
@@ -54,92 +73,159 @@
     $options[MOODLEOVERFLOW_TRACKING_OPTIONAL] = get_string('trackingoptional', 'moodleoverflow');
     $options[MOODLEOVERFLOW_TRACKING_OFF] = get_string('trackingoff', 'moodleoverflow');
     $options[MOODLEOVERFLOW_TRACKING_FORCED] = get_string('trackingon', 'moodleoverflow');
-    $settings->add(new admin_setting_configselect('moodleoverflow/trackingtype', get_string('trackingtype', 'moodleoverflow'),
-        get_string('configtrackingtype', 'moodleoverflow'), MOODLEOVERFLOW_TRACKING_OPTIONAL, $options));
+    $settings->add(new admin_setting_configselect(
+        'moodleoverflow/trackingtype',
+        get_string('trackingtype', 'moodleoverflow'),
+        get_string('configtrackingtype', 'moodleoverflow'),
+        MOODLEOVERFLOW_TRACKING_OPTIONAL,
+        $options
+    ));
 
     // Should unread posts be tracked for each user?
-    $settings->add(new admin_setting_configcheckbox('moodleoverflow/trackreadposts',
-        get_string('trackmoodleoverflow', 'moodleoverflow'), get_string('configtrackmoodleoverflow', 'moodleoverflow'), 1));
+    $settings->add(new admin_setting_configcheckbox(
+        'moodleoverflow/trackreadposts',
+        get_string('trackmoodleoverflow', 'moodleoverflow'),
+        get_string('configtrackmoodleoverflow', 'moodleoverflow'),
+        1
+    ));
 
     // Allow moodleoverflows to be set to forced read tracking.
-    $settings->add(new admin_setting_configcheckbox('moodleoverflow/allowforcedreadtracking',
-        get_string('forcedreadtracking', 'moodleoverflow'), get_string('configforcedreadtracking', 'moodleoverflow'), 0));
+    $settings->add(new admin_setting_configcheckbox(
+        'moodleoverflow/allowforcedreadtracking',
+        get_string('forcedreadtracking', 'moodleoverflow'),
+        get_string('configforcedreadtracking', 'moodleoverflow'),
+        0
+    ));
 
     // Default number of days that a post is considered old.
-    $settings->add(new admin_setting_configtext('moodleoverflow/oldpostdays', get_string('oldpostdays', 'moodleoverflow'),
-        get_string('configoldpostdays', 'moodleoverflow'), 14, PARAM_INT));
+    $settings->add(new admin_setting_configtext(
+        'moodleoverflow/oldpostdays',
+        get_string('oldpostdays', 'moodleoverflow'),
+        get_string('configoldpostdays', 'moodleoverflow'),
+        14,
+        PARAM_INT
+    ));
 
     // Default time (hour) to execute 'clean_read_records' cron.
     $options = [];
     for ($i = 0; $i < 24; $i++) {
         $options[$i] = sprintf("%02d", $i);
     }
-    $settings->add(new admin_setting_configselect('moodleoverflow/cleanreadtime', get_string('cleanreadtime', 'moodleoverflow'),
-        get_string('configcleanreadtime', 'moodleoverflow'), 2, $options));
+    $settings->add(new admin_setting_configselect(
+        'moodleoverflow/cleanreadtime',
+        get_string('cleanreadtime', 'moodleoverflow'),
+        get_string('configcleanreadtime', 'moodleoverflow'),
+        2,
+        $options
+    ));
 
     $url = new moodle_url('/mod/moodleoverflow/resetanonymous.php');
 
-    $settings->add(new admin_setting_configcheckbox('moodleoverflow/allowanonymous',
+    $settings->add(new admin_setting_configcheckbox(
+        'moodleoverflow/allowanonymous',
         get_string('allowanonymous', 'moodleoverflow'),
         get_string('allowanonymous_desc', 'moodleoverflow', $url->out(false)),
         1
     ));
 
     // Allow teachers to disable ratings/reputation.
-    $settings->add(new admin_setting_configcheckbox('moodleoverflow/allowdisablerating',
-        get_string('allowdisablerating', 'moodleoverflow'), get_string('configallowdisablerating', 'moodleoverflow'), 1));
+    $settings->add(new admin_setting_configcheckbox(
+        'moodleoverflow/allowdisablerating',
+        get_string('allowdisablerating', 'moodleoverflow'),
+        get_string('configallowdisablerating', 'moodleoverflow'),
+        1
+    ));
 
     // Allow users to change their votes?
-    $settings->add(new admin_setting_configcheckbox('moodleoverflow/allowratingchange',
-        get_string('allowratingchange', 'moodleoverflow'), get_string('configallowratingchange', 'moodleoverflow'), 1));
+    $settings->add(new admin_setting_configcheckbox(
+        'moodleoverflow/allowratingchange',
+        get_string('allowratingchange', 'moodleoverflow'),
+        get_string('configallowratingchange', 'moodleoverflow'),
+        1
+    ));
 
     // Allow teachers to enable review before publish.
-    $settings->add(new admin_setting_configcheckbox('moodleoverflow/allowreview',
-        get_string('allowreview', 'moodleoverflow'), get_string('allowreview_desc', 'moodleoverflow'), 1));
+    $settings->add(new admin_setting_configcheckbox(
+        'moodleoverflow/allowreview',
+        get_string('allowreview', 'moodleoverflow'),
+        get_string('allowreview_desc', 'moodleoverflow'),
+        1
+    ));
 
-    $settings->add(new admin_setting_configtext('moodleoverflow/reviewpossibleaftertime',
+    $settings->add(new admin_setting_configtext(
+        'moodleoverflow/reviewpossibleaftertime',
         get_string('reviewpossibleaftertime', 'moodleoverflow'),
-        get_string('reviewpossibleaftertime_desc', 'moodleoverflow'), 1800, PARAM_INT));
+        get_string('reviewpossibleaftertime_desc', 'moodleoverflow'),
+        1800,
+        PARAM_INT
+    ));
 
     // Set scales for the reputation.
     $votesettings = [];
 
     // Votescale: How much reputation gives a vote for another post?
-    $settings->add($votesettings[] = new admin_setting_configtext('moodleoverflow/votescalevote',
+    $settings->add($votesettings[] = new admin_setting_configtext(
+        'moodleoverflow/votescalevote',
         get_string('votescalevote', 'moodleoverflow'),
-        get_string('configvotescalevote', 'moodleoverflow'), 1, PARAM_INT));
+        get_string('configvotescalevote', 'moodleoverflow'),
+        1,
+        PARAM_INT
+    ));
 
     // Votescale: How much reputation gives a post that has been downvoted?
-    $settings->add($votesettings[] = new admin_setting_configtext('moodleoverflow/votescaledownvote',
-        get_string('votescaledownvote', 'moodleoverflow'), get_string('configvotescaledownvote', 'moodleoverflow'), -5, PARAM_INT));
+    $settings->add($votesettings[] = new admin_setting_configtext(
+        'moodleoverflow/votescaledownvote',
+        get_string('votescaledownvote', 'moodleoverflow'),
+        get_string('configvotescaledownvote', 'moodleoverflow'),
+        -5,
+        PARAM_INT
+    ));
 
     // Votescale: How much reputation gives a post that has been upvoted?
-    $settings->add($votesettings[] = new admin_setting_configtext('moodleoverflow/votescaleupvote',
+    $settings->add($votesettings[] = new admin_setting_configtext(
+        'moodleoverflow/votescaleupvote',
         get_string('votescaleupvote', 'moodleoverflow'),
-        get_string('configvotescaleupvote', 'moodleoverflow'), 5, PARAM_INT));
+        get_string('configvotescaleupvote', 'moodleoverflow'),
+        5,
+        PARAM_INT
+    ));
 
     // Votescale: How much reputation gives a post that is marked as solved.
-    $settings->add($votesettings[] = new admin_setting_configtext('moodleoverflow/votescalesolved',
+    $settings->add($votesettings[] = new admin_setting_configtext(
+        'moodleoverflow/votescalesolved',
         get_string('votescalesolved', 'moodleoverflow'),
-        get_string('configvotescalesolved', 'moodleoverflow'), 30, PARAM_INT));
+        get_string('configvotescalesolved', 'moodleoverflow'),
+        30,
+        PARAM_INT
+    ));
 
     // Votescale: How much reputation gives a post that is marked as helpful.
-    $settings->add($votesettings[] = new admin_setting_configtext('moodleoverflow/votescalehelpful',
+    $settings->add($votesettings[] = new admin_setting_configtext(
+        'moodleoverflow/votescalehelpful',
         get_string('votescalehelpful', 'moodleoverflow'),
-        get_string('configvotescalehelpful', 'moodleoverflow'), 15, PARAM_INT));
+        get_string('configvotescalehelpful', 'moodleoverflow'),
+        15,
+        PARAM_INT
+    ));
 
     // Number of discussions per page.
-    $settings->add($votesettings[] = new admin_setting_configtext('moodleoverflow/maxmailingtime',
+    $settings->add($votesettings[] = new admin_setting_configtext(
+        'moodleoverflow/maxmailingtime',
         get_string('maxmailingtime', 'moodleoverflow'),
-        get_string('configmaxmailingtime', 'moodleoverflow'), 48, PARAM_INT));
+        get_string('configmaxmailingtime', 'moodleoverflow'),
+        48,
+        PARAM_INT
+    ));
 
     foreach ($votesettings as $setting) {
         $setting->set_updatedcallback('moodleoverflow_update_all_grades');
     }
 
     // Allow teachers to see cumulative userstats.
-    $settings->add(new admin_setting_configcheckbox('moodleoverflow/showuserstats',
-        get_string('showuserstats', 'moodleoverflow'), get_string('configshowuserstats', 'moodleoverflow'), 0));
-
-
+    $settings->add(new admin_setting_configcheckbox(
+        'moodleoverflow/showuserstats',
+        get_string('showuserstats', 'moodleoverflow'),
+        get_string('configshowuserstats', 'moodleoverflow'),
+        0
+    ));
 }
diff --git a/subscribe.php b/subscribe.php
index 0af8f73c2ad..9408e1c2a40 100644
--- a/subscribe.php
+++ b/subscribe.php
@@ -52,8 +52,11 @@
 }
 if (!is_null($discussionid)) {
     $url->param('d', $discussionid);
-    $discussion = moodleoverflow_get_record_or_exception('moodleoverflow_discussions',
-                                                          ['id' => $discussionid, 'moodleoverflow' => $id], 'invaliddiscussionid');
+    $discussion = moodleoverflow_get_record_or_exception(
+        'moodleoverflow_discussions',
+        ['id' => $discussionid, 'moodleoverflow' => $id],
+        'invaliddiscussionid'
+    );
 }
 
 // Set the pages URL.
@@ -90,9 +93,7 @@
 
     // Retrieve the user from the database.
     $user = $DB->get_record('user', ['id' => $user], '*', MUST_EXIST);
-
 } else {
-
     // The user requested the subscription himself.
     $user = $USER;
 }
@@ -106,7 +107,6 @@
 // Guests, visitors and not enrolled people cannot subscribe.
 $isenrolled = is_enrolled($context, $USER, '', true);
 if (is_null($mode) && !$isenrolled) {
-
     // Prepare the output.
     $PAGE->set_title($course->shortname);
     $PAGE->set_heading($course->fullname);
@@ -140,7 +140,6 @@
 
     // Set the new mode.
     switch ($mode) {
-
         // Everyone can choose what he wants.
         case MOODLEOVERFLOW_CHOOSESUBSCRIBE:
             \mod_moodleoverflow\subscriptions::set_subscription_mode($moodleoverflow->id, MOODLEOVERFLOW_CHOOSESUBSCRIBE);
@@ -198,10 +197,8 @@
 // Check if the user is subscribed to the moodleoverflow.
 // The action is to unsubscribe the user.
 if ($issubscribed) {
-
     // Check if there is a sesskey.
     if (is_null($sesskey)) {
-
         // Perpare the output.
         $PAGE->set_title($course->shortname);
         $PAGE->set_heading($course->fullname);
@@ -212,7 +209,6 @@
 
         // Was a discussion id submitted?
         if ($discussionid) {
-
             // Create a new info object.
             $info2 = new stdClass();
             $info2->moodleoverflow = format_string($moodleoverflow->name);
@@ -221,7 +217,6 @@
             // Create a confirm statement.
             $string = get_string('confirmunsubscribediscussion', 'moodleoverflow', $info2);
             echo $OUTPUT->confirm($string, $PAGE->url, $viewurl);
-
         } else {
             // The discussion is not involved.
 
@@ -240,16 +235,13 @@
 
     // Check if a discussion id is submitted.
     if ($discussionid === null) {
-
         // Unsubscribe the user and redirect him back to where he is coming from.
         if (\mod_moodleoverflow\subscriptions::unsubscribe_user($user->id, $moodleoverflow, $context, true)) {
             redirect($returnto, get_string('nownotsubscribed', 'moodleoverflow', $info), null, $notify['success']);
         } else {
             throw new moodle_exception('cannotunsubscribe', 'moodleoverflow', get_local_referer(false));
         }
-
     } else {
-
         // Unsubscribe the user from the discussion.
         if (\mod_moodleoverflow\subscriptions::unsubscribe_user_from_discussion($user->id, $discussion, $context)) {
             $info->discussion = $discussion->name;
@@ -258,7 +250,6 @@
             throw new moodle_exception('cannotunsubscribe', 'moodleoverflow', get_local_referer(false));
         }
     }
-
 } else {
     // The user needs to be subscribed.
 
@@ -281,7 +272,6 @@
 
     // Check the session key.
     if (is_null($sesskey)) {
-
         // Prepare the output.
         $PAGE->set_title($course->shortname);
         $PAGE->set_heading($course->fullname);
@@ -292,7 +282,6 @@
 
         // Check whether a discussion is referenced.
         if ($discussionid) {
-
             // Create a new info object.
             $info2 = new stdClass();
             $info2->moodleoverflow = format_string($moodleoverflow->name);
@@ -301,7 +290,6 @@
             // Create a confirm dialog.
             $string = get_string('confirmsubscribediscussion', 'moodleoverflow', $info2);
             echo $OUTPUT->confirm($string, $PAGE->url, $viewurl);
-
         } else {
             // No discussion is referenced.
 
@@ -320,12 +308,10 @@
 
     // Check if the subscription is refered to a discussion.
     if ($discussionid == null) {
-
         // Subscribe the user to the moodleoverflow instance.
         \mod_moodleoverflow\subscriptions::subscribe_user($user->id, $moodleoverflow, $context, true);
         redirect($returnto, get_string('nowsubscribed', 'moodleoverflow', $info), null, $notify['success']);
         exit;
-
     } else {
         $info->discussion = $discussion->name;
 
diff --git a/tests/behat/behat_mod_moodleoverflow.php b/tests/behat/behat_mod_moodleoverflow.php
index 2d129a760d1..d8cac2fefc7 100644
--- a/tests/behat/behat_mod_moodleoverflow.php
+++ b/tests/behat/behat_mod_moodleoverflow.php
@@ -27,7 +27,7 @@
 
 require_once(__DIR__ . '/../../../../lib/behat/behat_base.php');
 
-use Behat\Gherkin\Node\TableNode as TableNode;
+use Behat\Gherkin\Node\TableNode;
 use Behat\Mink\Exception\ElementNotFoundException;
 use Behat\Mink\Exception\ExpectationException;
 
@@ -40,8 +40,6 @@
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 class behat_mod_moodleoverflow extends behat_base {
-
-
     /**
      * Build basic background for moodleoverflow tests.
      * Builds:
@@ -129,8 +127,12 @@ public function i_add_a_moodleoverflow_discussion_with_posts_from_different_user
      * @return void
      * @throws Exception
      */
-    public function i_navigate_as_user_to_the_discussion(string $user, string $course, string $moodleoverflow,
-                                                         string $discussion): void {
+    public function i_navigate_as_user_to_the_discussion(
+        string $user,
+        string $course,
+        string $moodleoverflow,
+        string $discussion
+    ): void {
         $this->execute('behat_auth::i_log_in_as', $user);
         $this->execute('behat_navigation::i_am_on_course_homepage', $course);
         $this->execute('behat_general::click_link', $this->escape($moodleoverflow));
@@ -283,8 +285,10 @@ protected function add_new_discussion($moodleoverflowname, TableNode $table, $bu
 
         // Fill form and post.
         $this->execute('behat_forms::i_set_the_following_fields_to_these_values', $table);
-        $this->execute('behat_forms::press_button', get_string('posttomoodleoverflow',
-            'moodleoverflow'));
+        $this->execute('behat_forms::press_button', get_string(
+            'posttomoodleoverflow',
+            'moodleoverflow'
+        ));
         $this->execute('behat_general::i_wait_to_be_redirected');
     }
 
@@ -293,9 +297,11 @@ protected function add_new_discussion($moodleoverflowname, TableNode $table, $bu
      * @param string $discussiontitle
      */
     protected function find_moodleoverflow_discussion_card(string $discussiontitle): \Behat\Mink\Element\Element {
-        return $this->find('xpath',
-            '//*[contains(concat(" ",normalize-space(@class)," ")," moodleoverflowdiscussion ")][.//*[text()="'.
-            $discussiontitle . '"]]');
+        return $this->find(
+            'xpath',
+            '//*[contains(concat(" ",normalize-space(@class)," ")," moodleoverflowdiscussion ")][.//*[text()="' .
+            $discussiontitle . '"]]'
+        );
     }
 
     // phpcs:disable moodle.Files.LineLength.TooLong
@@ -316,8 +322,12 @@ public function should_exist_in_the_moodleoverflow_discussion_card($element, $se
         $containernode = $this->find_moodleoverflow_discussion_card($discussiontitle);
 
         // Specific exception giving info about where can't we find the element.
-        $exception = new ElementNotFoundException($this->getSession(), $selectortype, null,
-        "$element in the moodleoverflow discussion card.");
+        $exception = new ElementNotFoundException(
+            $this->getSession(),
+            $selectortype,
+            null,
+            "$element in the moodleoverflow discussion card."
+        );
 
         // Looks for the requested node inside the container node.
         $this->find($selectortype, $element, $exception, $containernode);
@@ -338,8 +348,12 @@ public function i_click_on_in_the_moodleoverflow_discussion_card($element, $sele
         $containernode = $this->find_moodleoverflow_discussion_card($discussiontitle);
 
         // Specific exception giving info about where can't we find the element.
-        $exception = new ElementNotFoundException($this->getSession(), $selectortype, null,
-            "$element in the moodleoverflow discussion card.");
+        $exception = new ElementNotFoundException(
+            $this->getSession(),
+            $selectortype,
+            null,
+            "$element in the moodleoverflow discussion card."
+        );
 
         // Looks for the requested node inside the container node.
         $node = $this->find($selectortype, $element, $exception, $containernode);
diff --git a/tests/dailymail_test.php b/tests/dailymail_test.php
index 9ac3c1e39d5..806cb6525d1 100644
--- a/tests/dailymail_test.php
+++ b/tests/dailymail_test.php
@@ -42,8 +42,6 @@
  * @covers \mod_moodleoverflow\task\send_daily_mails::execute
  */
 final class dailymail_test extends \advanced_testcase {
-
-
     /** @var stdClass test environment
      * This Class contains the test environment:
      * - the message sink to check if mails were sent.
@@ -70,7 +68,7 @@ public function setUp(): void {
         $this->env->course = $this->getDataGenerator()->create_course();
         $location = ['course' => $this->env->course->id, 'forcesubscribe' => MOODLEOVERFLOW_FORCESUBSCRIBE];
         $this->env->moodleoverflow = $this->getDataGenerator()->create_module('moodleoverflow', $location);
-        $this->env->coursemodule = get_coursemodule_from_instance('moodleoverflow', $this->env->moodleoverflow->id);
+        $this->env->cm = get_coursemodule_from_instance('moodleoverflow', $this->env->moodleoverflow->id);
     }
 
     /**
@@ -200,8 +198,8 @@ public function test_content_of_mail_delivery(): void {
 
         // Build the text that the mail should have.
         // Text structure at get_string('digestunreadpost', moodleoverflow).
-        $linktocourse = '<a href=3D"https://www.example.com/mood=le/course/view.php?id=3D'. $this->env->course->id;
-        $linktoforum = '<a href=3D"https://www.=example.com/moodle/mod/moodleoverflow/view.php?id=3D'. $this->env->coursemodule->id;
+        $linktocourse = '<a href=3D"https://www.example.com/mood=le/course/view.php?id=3D' . $this->env->course->id;
+        $linktoforum = '<a href=3D"https://www.=example.com/moodle/mod/moodleoverflow/view.php?id=3D' . $this->env->cm->id;
         $linktodiscussion = '<a href=3D"https://www.example.com/moodle/mod/moodleoverflow/=discussion.php?d=3D'
                             . $this->env->discussions[0]->id;
 
diff --git a/tests/discussion_test.php b/tests/discussion_test.php
index a69926e95e6..b4a2efac8ef 100644
--- a/tests/discussion_test.php
+++ b/tests/discussion_test.php
@@ -36,7 +36,6 @@
  * @covers \mod_moodleoverflow\discussion\discussion
  */
 final class discussion_test extends \advanced_testcase {
-
     /** @var \stdClass test course */
     private $course;
 
@@ -95,8 +94,16 @@ public function test_create_discussion(): void {
         $this->setUser($this->teacher);
 
         // Build a new discussion object.
-        $discussion = discussion::construct_without_id($this->course->id, $this->moodleoverflow->id, 'Discussion Topic',
-                                           0, $this->teacher->id, $time, $time, $this->teacher->id);
+        $discussion = discussion::construct_without_id(
+            $this->course->id,
+            $this->moodleoverflow->id,
+            'Discussion Topic',
+            0,
+            $this->teacher->id,
+            $time,
+            $time,
+            $this->teacher->id
+        );
         $discussionid = $discussion->moodleoverflow_add_discussion($prepost);
         $posts = $discussion->moodleoverflow_get_discussion_posts();
         $post = $posts[$discussion->get_firstpostid()];
diff --git a/tests/generator/lib.php b/tests/generator/lib.php
index c8d2873704f..0e9e4991409 100644
--- a/tests/generator/lib.php
+++ b/tests/generator/lib.php
@@ -33,7 +33,6 @@
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 class mod_moodleoverflow_generator extends testing_module_generator {
-
     /**
      * @var int keep track of how many moodleoverflow discussions have been created.
      */
diff --git a/tests/locallib_test.php b/tests/locallib_test.php
index dbbf58d11c1..f325b9111a9 100644
--- a/tests/locallib_test.php
+++ b/tests/locallib_test.php
@@ -37,7 +37,6 @@
  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 final class locallib_test extends advanced_testcase {
-
     public function setUp(): void {
         parent::setUp();
         \mod_moodleoverflow\subscriptions::reset_moodleoverflow_cache();
@@ -174,5 +173,4 @@ public function test_moodleoverflow_disallow_subscribe_on_create(): void {
             $this->assertFalse(\mod_moodleoverflow\subscriptions::is_subscribed($user->id, $mo, $context));
         }
     }
-
 }
diff --git a/tests/notification_mail_test.php b/tests/notification_mail_test.php
index c5cb4b0fd23..d422819b193 100644
--- a/tests/notification_mail_test.php
+++ b/tests/notification_mail_test.php
@@ -47,7 +47,6 @@
  */
 #[CoversClass(mail_manager::class)]
 final class notification_mail_test extends \advanced_testcase {
-
     // Attributes.
 
     /** @var object The data that will be used for testing.
diff --git a/tests/post_test.php b/tests/post_test.php
index ff6729482a1..9d070faeb59 100644
--- a/tests/post_test.php
+++ b/tests/post_test.php
@@ -42,7 +42,6 @@
  * @covers \mod_moodleoverflow\post\post
  */
 final class post_test extends \advanced_testcase {
-
     /** @var stdClass test course */
     private $course;
 
@@ -92,8 +91,19 @@ public function test_create_post(): void {
         // Build a new post object.
         $time = time();
         $message = 'a unique message';
-        $post = post::construct_without_id($this->discussion->get_id(), $this->post->get_id(), $this->teacher->id, $time,
-                                           $time, $message, 0, '', 0, 1, null);
+        $post = post::construct_without_id(
+            $this->discussion->get_id(),
+            $this->post->get_id(),
+            $this->teacher->id,
+            $time,
+            $time,
+            $message,
+            0,
+            '',
+            0,
+            1,
+            null
+        );
         $post->moodleoverflow_add_new_post();
 
         // The post should be in the database.
@@ -126,7 +136,7 @@ public function test_edit_post(): void {
 
         // The message and modified time should be changed.
         $post = $DB->get_record('moodleoverflow_posts', ['id' => $this->post->get_id()]);
-        $this->assertEquals($message,  $post->message);
+        $this->assertEquals($message, $post->message);
         $this->assertEquals($time, $post->modified);
     }
 
@@ -203,12 +213,12 @@ private function helper_course_set_up() {
     private function add_new_attachment($object, $modulecontext, $filename, $filecontent) {
         global $DB;
         $fileinfo = [
-            'contextid' => $modulecontext->id,           // ID of the context.
-            'component' => 'mod_moodleoverflow',               // Your component name.
-            'filearea'  => 'attachment',                       // Usually = table name.
-            'itemid'    => $object->id,                      // Usually = ID of the item (e.g. the post.
-            'filepath'  => '/',                                // Any path beginning and ending in /.
-            'filename'  => $filename,                      // Any filename.
+            'contextid' => $modulecontext->id, // ID of the context.
+            'component' => 'mod_moodleoverflow', // Your component name.
+            'filearea'  => 'attachment', // Usually = table name.
+            'itemid'    => $object->id, // Usually = ID of the item (e.g. the post.
+            'filepath'  => '/', // Any path beginning and ending in /.
+            'filename'  => $filename, // Any filename.
         ];
         $fs = get_file_storage();
         $fs->create_file_from_string($fileinfo, $filecontent); // Creates a new file containing the text 'hello world'.
diff --git a/tests/privacy_provider_test.php b/tests/privacy_provider_test.php
index b02612c3e8e..28f91775e5e 100644
--- a/tests/privacy_provider_test.php
+++ b/tests/privacy_provider_test.php
@@ -125,9 +125,9 @@ protected function assert_post_data($expected, $actual, $writer) {
      */
     public function test_user_has_never_posted(): void {
         // Create a course with moodleoverflow forums.
-        list($course, $forum) = $this->create_courses_and_modules(3);
+        [$course, $forum] = $this->create_courses_and_modules(3);
         // Create users.
-        list($user, $otheruser) = $this->create_and_enrol_users($course, 2);
+        [$user, $otheruser] = $this->create_and_enrol_users($course, 2);
 
         // Post to forum.
         $this->generator->post_to_forum($forum, $otheruser);
@@ -156,8 +156,8 @@ public function test_user_has_never_posted(): void {
      */
     public function test_user_has_never_posted_subscribed_to_forum(): void {
         // Create a course, with a forum, our user under test, another user, and a discussion + post from the other user.
-        list($course, $forum) = $this->create_courses_and_modules(3);
-        list($user, $otheruser) = $this->create_and_enrol_users($course, 2);
+        [$course, $forum] = $this->create_courses_and_modules(3);
+        [$user, $otheruser] = $this->create_and_enrol_users($course, 2);
         $this->generator->post_to_forum($forum, $otheruser);
         $cm = get_coursemodule_from_instance('moodleoverflow', $forum->id);
         $context = \context_module::instance($cm->id);
@@ -189,13 +189,13 @@ public function test_user_has_never_posted_subscribed_to_forum(): void {
      */
     public function test_user_has_never_posted_subscribed_to_discussion(): void {
         // Create a course, with a forum, our user under test, another user, and a discussion + post from the other user.
-        list($course, $forum) = $this->create_courses_and_modules(3);
+        [$course, $forum] = $this->create_courses_and_modules(3);
         // Create users.
-        list($user, $otheruser) = $this->create_and_enrol_users($course, 2);
+        [$user, $otheruser] = $this->create_and_enrol_users($course, 2);
 
         // Post twice - only the second discussion should be included.
         $this->generator->post_to_forum($forum, $otheruser);
-        list($discussion, $post) = $this->generator->post_to_forum($forum, $otheruser);
+        [$discussion, $post] = $this->generator->post_to_forum($forum, $otheruser);
         $cm = get_coursemodule_from_instance('moodleoverflow', $forum->id);
         $context = \context_module::instance($cm->id);
         // Subscribe the user to the discussion.
@@ -233,11 +233,11 @@ public function test_user_has_never_posted_subscribed_to_discussion(): void {
      * content returned.
      */
     public function test_user_has_posted_own_discussion(): void {
-        list($course, $forum) = $this->create_courses_and_modules(3);
-        list($user, $otheruser) = $this->create_users($course, 2);
+        [$course, $forum] = $this->create_courses_and_modules(3);
+        [$user, $otheruser] = $this->create_users($course, 2);
         // Post twice - only the second discussion should be included.
-        list($discussion, $post) = $this->generator->post_to_forum($forum, $user);
-        list($otherdiscussion) = $this->generator->post_to_forum($forum, $otheruser);
+        [$discussion, $post] = $this->generator->post_to_forum($forum, $user);
+        [$otherdiscussion] = $this->generator->post_to_forum($forum, $otheruser);
         $cm = get_coursemodule_from_instance('moodleoverflow', $forum->id);
         $context = \context_module::instance($cm->id);
         // Retrieve all contexts - only this context should be returned.
@@ -251,8 +251,11 @@ public function test_user_has_posted_own_discussion(): void {
         $this->assertTrue($writer->has_any_data());
         // The other discussion should not have been returned as we did not post in it.
         $this->assertEmpty($writer->get_data(data_export_helper::get_subcontext($otherdiscussion)));
-        $this->assert_discussion_data($discussion,
-            $writer->get_data(data_export_helper::get_subcontext($discussion)), $user->id);
+        $this->assert_discussion_data(
+            $discussion,
+            $writer->get_data(data_export_helper::get_subcontext($discussion)),
+            $user->id
+        );
         $this->assert_post_data($post, $writer->get_data(data_export_helper::get_subcontext($discussion, $post)), $writer);
     }
 
@@ -263,11 +266,11 @@ public function test_user_has_posted_own_discussion(): void {
     public function test_user_has_posted_reply(): void {
         global $DB;
         // Create several courses and forums. We only insert data into the final one.
-        list($course, $forum) = $this->create_courses_and_modules(3);
-        list($user, $otheruser) = $this->create_users($course, 2);
+        [$course, $forum] = $this->create_courses_and_modules(3);
+        [$user, $otheruser] = $this->create_users($course, 2);
         // Post twice - only the second discussion should be included.
-        list($discussion, $post) = $this->generator->post_to_forum($forum, $otheruser);
-        list($otherdiscussion) = $this->generator->post_to_forum($forum, $otheruser);
+        [$discussion, $post] = $this->generator->post_to_forum($forum, $otheruser);
+        [$otherdiscussion] = $this->generator->post_to_forum($forum, $otheruser);
         $cm = get_coursemodule_from_instance('moodleoverflow', $forum->id);
         $context = \context_module::instance($cm->id);
         // Post a reply to the other person's post.
@@ -302,8 +305,8 @@ public function test_user_has_posted_reply(): void {
     public function test_user_has_rated_others(): void {
         $course = $this->getDataGenerator()->create_course();
         $forum = $this->getDataGenerator()->create_module('moodleoverflow', ['course' => $course->id, 'scale' => 100]);
-        list($user, $otheruser) = $this->create_users($course, 2);
-        list($discussion, $post) = $this->generator->post_to_forum($forum, $otheruser);
+        [$user, $otheruser] = $this->create_users($course, 2);
+        [$discussion, $post] = $this->generator->post_to_forum($forum, $otheruser);
         $cm = get_coursemodule_from_instance('moodleoverflow', $forum->id);
         $context = \context_module::instance($cm->id);
         // Rate the other users content.
@@ -342,8 +345,8 @@ public function test_user_has_rated_others(): void {
     public function test_user_has_been_rated(): void {
         $course = $this->getDataGenerator()->create_course();
         $forum = $this->getDataGenerator()->create_module('moodleoverflow', [ 'course' => $course->id, 'scale' => 100]);
-        list($user, $otheruser) = $this->create_users($course, 3);
-        list($discussion, $post) = $this->generator->post_to_forum($forum, $user);
+        [$user, $otheruser] = $this->create_users($course, 3);
+        [$discussion, $post] = $this->generator->post_to_forum($forum, $user);
         $cm = get_coursemodule_from_instance('moodleoverflow', $forum->id);
         $context = \context_module::instance($cm->id);
         // Other users rate my content.
@@ -380,7 +383,7 @@ public function test_user_tracking_data(): void {
         $cmoff = get_coursemodule_from_instance('moodleoverflow', $forumoff->id);
         $contextoff = \context_module::instance($cmoff->id);
         $forumon = $this->getDataGenerator()->create_module('moodleoverflow', ['course' => $course->id]);
-        list($user) = $this->create_users($course, 1);
+        [$user] = $this->create_users($course, 1);
         // Set user tracking data.
         readtracking::moodleoverflow_stop_tracking($forumoff->id, $user->id);
         readtracking::moodleoverflow_start_tracking($forumon->id, $user->id);
@@ -410,19 +413,19 @@ public function test_user_read_posts(): void {
         $forum3 = $this->getDataGenerator()->create_module('moodleoverflow', ['course' => $course->id]);
         $cm3 = get_coursemodule_from_instance('moodleoverflow', $forum3->id);
         $context3 = \context_module::instance($cm3->id);
-        list($author, $user) = $this->create_users($course, 2);
-        list($f1d1, $f1p1) = $this->generator->post_to_forum($forum1, $author);
+        [$author, $user] = $this->create_users($course, 2);
+        [$f1d1, $f1p1] = $this->generator->post_to_forum($forum1, $author);
         $f1p1reply = $this->generator->post_to_discussion($forum1, $f1d1, $author);
         $f1d1 = $DB->get_record('moodleoverflow_discussions', ['id' => $f1d1->id]);
-        list($f1d2, $f1p2) = $this->generator->post_to_forum($forum1, $author);
-        list($f2d1, $f2p1) = $this->generator->post_to_forum($forum2, $author);
+        [$f1d2, $f1p2] = $this->generator->post_to_forum($forum1, $author);
+        [$f2d1, $f2p1] = $this->generator->post_to_forum($forum2, $author);
         $f2p1reply = $this->generator->post_to_discussion($forum2, $f2d1, $author);
         $f2d1 = $DB->get_record('moodleoverflow_discussions', ['id' => $f2d1->id]);
-        list($f2d2, $f2p2) = $this->generator->post_to_forum($forum2, $author);
-        list($f3d1, $f3p1) = $this->generator->post_to_forum($forum3, $author);
+        [$f2d2, $f2p2] = $this->generator->post_to_forum($forum2, $author);
+        [$f3d1, $f3p1] = $this->generator->post_to_forum($forum3, $author);
         $f3p1reply = $this->generator->post_to_discussion($forum3, $f3d1, $author);
         $f3d1 = $DB->get_record('moodleoverflow_discussions', ['id' => $f3d1->id]);
-        list($f3d2, $f3p2) = $this->generator->post_to_forum($forum3, $author);
+        [$f3d2, $f3p2] = $this->generator->post_to_forum($forum3, $author);
 
         // Insert read info.
         // User has read post1, but not the reply or second post in forum1.
@@ -496,24 +499,26 @@ public function test_post_attachment_inclusion(): void {
         global $DB;
         $fs = get_file_storage();
         $course = $this->getDataGenerator()->create_course();
-        list($author) = $this->create_users($course, 2);
+        [$author] = $this->create_users($course, 2);
         $forum = $this->getDataGenerator()->create_module('moodleoverflow', ['course' => $course->id, 'scale' => 100]);
         $cm = get_coursemodule_from_instance('moodleoverflow', $forum->id);
         $context = \context_module::instance($cm->id);
         // Create a new discussion + post in the forum.
-        list($discussion, $post) = $this->generator->post_to_forum($forum, $author);
+        [$discussion, $post] = $this->generator->post_to_forum($forum, $author);
         $discussion = $DB->get_record('moodleoverflow_discussions', ['id' => $discussion->id]);
         // Add a number of replies.
         $this->generator->reply_to_post($post, $author);
         $reply = $this->generator->reply_to_post($post, $author);
         $this->generator->reply_to_post($reply, $author);
         // Add a fake inline image to the original post.
-        $createdfile = $fs->create_file_from_string(['contextid' => $context->id, 'component' => 'mod_moodleoverflow',
+        $createdfile = $fs->create_file_from_string(
+            ['contextid' => $context->id, 'component' => 'mod_moodleoverflow',
                                'filearea' => 'attachment', 'itemid' => $post->id, 'filepath' => '/', 'filename' => 'example.jpg', ],
-                     'image contents (not really)');
+            'image contents (not really)'
+        );
 
         // Create a second discussion + post in the forum without tags.
-        list(, $otherpost) = $this->generator->post_to_forum($forum, $author);
+        [, $otherpost] = $this->generator->post_to_forum($forum, $author);
         // Add a number of replies.
         $this->generator->reply_to_post($otherpost, $author);
         $this->generator->reply_to_post($otherpost, $author);
@@ -556,7 +561,7 @@ public function test_all_users_deleted_from_context(): void {
             foreach ($forums as $forum) {
                 $context = $contexts[$forum->id];
                 // Create a new discussion + post in the forum.
-                list($discussion, $post) = $this->generator->post_to_forum($forum, $user);
+                [$discussion, $post] = $this->generator->post_to_forum($forum, $user);
                 $discussion = $DB->get_record('moodleoverflow_discussions', ['id' => $discussion->id]);
                 $discussions[$discussion->id] = $discussion;
                 // Add a number of replies.
@@ -618,7 +623,7 @@ public function test_all_users_deleted_from_context(): void {
         });
         // All forum discussions and posts should have been deleted in this forum.
         $this->assertCount(0, $DB->get_records('moodleoverflow_discussions', ['moodleoverflow' => $forum->id]));
-        list ($insql, $inparams) = $DB->get_in_or_equal(array_keys($discussionsinforum));
+         [$insql, $inparams] = $DB->get_in_or_equal(array_keys($discussionsinforum));
         $this->assertCount(0, $DB->get_records_select('moodleoverflow_posts', "discussion {$insql}", $inparams));
         // All uploaded files relating to this context should have been deleted (post content).
         foreach ($postsinforum as $post) {
@@ -642,7 +647,7 @@ public function test_all_users_deleted_from_context(): void {
         });
         // Forum discussions and posts should not have been deleted in this forum.
         $this->assertGreaterThan(0, $DB->count_records('moodleoverflow_discussions', ['moodleoverflow' => $forum->id]));
-        list ($insql, $inparams) = $DB->get_in_or_equal(array_keys($discussionsinforum));
+         [$insql, $inparams] = $DB->get_in_or_equal(array_keys($discussionsinforum));
         $this->assertGreaterThan(0, $DB->count_records_select('moodleoverflow_posts', "discussion {$insql}", $inparams));
         // Uploaded files relating to this context should remain.
         foreach ($postsinforum as $post) {
@@ -686,7 +691,7 @@ public function test_delete_data_for_user(): void {
             foreach ($forums as $forum) {
                 $context = $contexts[$forum->id];
                 // Create a new discussion + post in the forum.
-                list($discussion, $post) = $this->generator->post_to_forum($forum, $user);
+                [$discussion, $post] = $this->generator->post_to_forum($forum, $user);
                 $discussion = $DB->get_record('moodleoverflow_discussions', ['id' => $discussion->id]);
                 $discussions[$discussion->id] = $discussion;
                 $postsbyforum[$user->id][$context->id] = [];
@@ -728,7 +733,6 @@ public function test_delete_data_for_user(): void {
                 $forum = $forums[$discussion->moodleoverflow];
                 // Rate the other users content.
                 if ($post->userid != $user->id) {
-
                     $rating = [];
                     $rating['moodleoverflowid'] = $forum->id;
                     $rating['discussionid'] = $discussion->id;
@@ -745,7 +749,7 @@ public function test_delete_data_for_user(): void {
         $otherpostids = [];
         foreach ($postsbyforum as $user => $contexts) {
             foreach ($contexts as $thiscontextid => $theseposts) {
-                $thesepostids = array_map(function($post) {
+                $thesepostids = array_map(function ($post) {
                     return $post->id;
                 }, $theseposts);
 
@@ -758,8 +762,8 @@ public function test_delete_data_for_user(): void {
                 }
             }
         }
-        list($postinsql, $postinparams) = $DB->get_in_or_equal($deletedpostids, SQL_PARAMS_NAMED);
-        list($otherpostinsql, $otherpostinparams) = $DB->get_in_or_equal($otherpostids, SQL_PARAMS_NAMED);
+        [$postinsql, $postinparams] = $DB->get_in_or_equal($deletedpostids, SQL_PARAMS_NAMED);
+        [$otherpostinsql, $otherpostinparams] = $DB->get_in_or_equal($otherpostids, SQL_PARAMS_NAMED);
 
         $approvedcontextlist = new \core_privacy\tests\request\approved_contextlist(
             \core_user::get_user($user1->id),
@@ -775,19 +779,23 @@ public function test_delete_data_for_user(): void {
         // Four of those posts should have been marked as deleted.
         // That means that the user ID is null and the message is empty.
         $this->assertCount(4, $DB->get_records_select('moodleoverflow_posts', "userid = :userid"
-            . " AND " . $DB->sql_compare_text('message') . " = " . $DB->sql_compare_text(':message')
-            , [
+            . " AND " . $DB->sql_compare_text('message') . " = " . $DB->sql_compare_text(':message'), [
                 'userid' => 0,
                 'message' => '',
             ]));
 
         // Only user1's posts should have been marked this way.
         $this->assertCount(4, $DB->get_records('moodleoverflow_posts', ['userid' => 0]));
-        $this->assertCount(4, $DB->get_records_select('moodleoverflow_posts',
-            $DB->sql_compare_text('message') . " = " . $DB->sql_compare_text(':message'), ['message' => '']));
+        $this->assertCount(4, $DB->get_records_select(
+            'moodleoverflow_posts',
+            $DB->sql_compare_text('message') . " = " . $DB->sql_compare_text(':message'),
+            ['message' => '']
+        ));
 
         // Only the posts in the first discussion should have been marked this way.
-        $this->assertCount(4, $DB->get_records_select('moodleoverflow_posts', "userid = :userid AND id {$postinsql}",
+        $this->assertCount(4, $DB->get_records_select(
+            'moodleoverflow_posts',
+            "userid = :userid AND id {$postinsql}",
             array_merge($postinparams, ['userid' => 0])
         ));
 
@@ -897,7 +905,7 @@ public function test_delete_data_for_users(): void {
                 $context = $contexts[$moodleoverflow->id];
 
                 // Create a new discussion + post in the moodleoverflow.
-                list($discussion, $post) = $this->generator->post_to_forum($moodleoverflow, $user);
+                [$discussion, $post] = $this->generator->post_to_forum($moodleoverflow, $user);
                 $discussion = $DB->get_record('moodleoverflow_discussions', ['id' => $discussion->id]);
 
                 $discussions[$discussion->id] = $discussion;
@@ -981,8 +989,7 @@ public function test_delete_data_for_users(): void {
         // That means the userid equals 0, message equals empty string, and message format equals FORMAT_PLAIN.
         $this->assertCount(4, $DB->get_records_select('moodleoverflow_posts', "userid = :userid"
             . " AND " . $DB->sql_compare_text('message') . " = " . $DB->sql_compare_text(':message')
-            . " AND " . $DB->sql_compare_text('messageformat') . " = " . $DB->sql_compare_text(':messageformat')
-            , [
+            . " AND " . $DB->sql_compare_text('messageformat') . " = " . $DB->sql_compare_text(':messageformat'), [
                 'userid' => 0,
                 'messageformat' => FORMAT_PLAIN,
                 'message' => '',
@@ -991,7 +998,7 @@ public function test_delete_data_for_users(): void {
         // Ratings were made anonymous from the affected posts.
         // All ratings from user1 in Moodleoverflow1 should have been deleted so 16 entries should be anonymous.
         // (20 post in Moodleoverflow -4 post belonging to user 1).
-        $this->assertCount(16, $DB->get_records_select('moodleoverflow_ratings', "userid = :userid" , ['userid' => 0 ]));
+        $this->assertCount(16, $DB->get_records_select('moodleoverflow_ratings', "userid = :userid", ['userid' => 0 ]));
         // All ratings should still exist (2 Moodleoverflows * 5 users * 16 post from other people).
         $this->assertCount(160, $DB->get_records('moodleoverflow_ratings'));
 
@@ -1006,8 +1013,7 @@ public function test_delete_data_for_users(): void {
         // All of the discussions from moodleoverflow 1 should have been filed with empty values.
         // That means the userid equals 0, and name equals empty string.
         $this->assertCount(1, $DB->get_records_select('moodleoverflow_discussions', "userid = :userid"
-            . " AND " . $DB->sql_compare_text('name') . " = " . $DB->sql_compare_text(':name')
-            , [
+            . " AND " . $DB->sql_compare_text('name') . " = " . $DB->sql_compare_text(':name'), [
                 'userid' => 0,
                 'name' => '',
             ]));
@@ -1017,7 +1023,7 @@ public function test_delete_data_for_users(): void {
         $otherpostids = [];
         foreach ($postsbyforum as $user => $contexts) {
             foreach ($contexts as $thiscontextid => $theseposts) {
-                $thesepostids = array_map(function($post) {
+                $thesepostids = array_map(function ($post) {
                     return $post->id;
                 }, $theseposts);
 
@@ -1030,15 +1036,18 @@ public function test_delete_data_for_users(): void {
                 }
             }
         }
-        list($postinsql, $postinparams) = $DB->get_in_or_equal($deletedpostids, SQL_PARAMS_NAMED);
-        list($otherpostinsql, $otherpostinparams) = $DB->get_in_or_equal($otherpostids, SQL_PARAMS_NAMED);
+        [$postinsql, $postinparams] = $DB->get_in_or_equal($deletedpostids, SQL_PARAMS_NAMED);
+        [$otherpostinsql, $otherpostinparams] = $DB->get_in_or_equal($otherpostids, SQL_PARAMS_NAMED);
 
         // For each context 20 files are created.
         // 2 are from the critical user in the critical context, which are deleted.
         $this->assertCount(0, $DB->get_records_select('files', "itemid {$postinsql}", $postinparams));
         // All other files still exist.
-        $this->assertCount(18, $DB->get_records_select('files', "filename <> '.' AND itemid {$otherpostinsql}",
-            $otherpostinparams));
+        $this->assertCount(18, $DB->get_records_select(
+            'files',
+            "filename <> '.' AND itemid {$otherpostinsql}",
+            $otherpostinparams
+        ));
     }
 
     /**
@@ -1051,7 +1060,7 @@ public function test_get_users_in_context_post_author(): void {
         $cm = get_coursemodule_from_instance('moodleoverflow', $moodleoverflow->id);
         $context = \context_module::instance($cm->id);
 
-        list($author) = $this->create_users($course, 2);
+        [$author] = $this->create_users($course, 2);
 
         $this->generator->post_to_forum($moodleoverflow, $author);
 
@@ -1074,9 +1083,9 @@ public function test_get_users_in_context_post_authors(): void {
         $cm = get_coursemodule_from_instance('moodleoverflow', $moodleoverflow->id);
         $context = \context_module::instance($cm->id);
 
-        list($author, $user) = $this->create_users($course, 3);
+        [$author, $user] = $this->create_users($course, 3);
 
-        list($fd1) = $this->generator->post_to_forum($moodleoverflow, $author);
+        [$fd1] = $this->generator->post_to_forum($moodleoverflow, $author);
         $this->generator->post_to_discussion($moodleoverflow, $fd1, $user);
         $DB->get_record('moodleoverflow_discussions', ['id' => $fd1->id]);
 
@@ -1101,8 +1110,8 @@ public function test_get_users_in_context_post_ratings(): void {
         $moodleoverflow = $this->getDataGenerator()->create_module('moodleoverflow', ['course' => $course->id]);
         $cm = get_coursemodule_from_instance('moodleoverflow', $moodleoverflow->id);
         $context = \context_module::instance($cm->id);
-        list($author, $user) = $this->create_users($course, 3);
-        list($fd1, $fp1) = $this->generator->post_to_forum($moodleoverflow, $author);
+        [$author, $user] = $this->create_users($course, 3);
+        [$fd1, $fp1] = $this->generator->post_to_forum($moodleoverflow, $author);
         $time = time();
         $rating = (object) ['userid' => $user->id, 'postid' => $fp1->id, 'discussionid' => $fd1->id,
                             'moodleoverflowid' => $moodleoverflow->id, 'rating' => 1, 'firstrated' => $time,
@@ -1128,7 +1137,7 @@ public function test_get_users_in_context_with_subscription(): void {
         $moodleoverflow = $this->getDataGenerator()->create_module('moodleoverflow', ['course' => $course->id]);
         $cm = get_coursemodule_from_instance('moodleoverflow', $moodleoverflow->id);
         $context = \context_module::instance($cm->id);
-        list($user) = $this->create_users($course, 2);
+        [$user] = $this->create_users($course, 2);
 
         // Subscribe the user to the moodleoverflow.
         subscriptions::subscribe_user($user->id, $moodleoverflow, $context);
@@ -1151,11 +1160,11 @@ public function test_get_users_in_context_with_discussion_subscription(): void {
         $cm = get_coursemodule_from_instance('moodleoverflow', $moodleoverflow->id);
         $context = \context_module::instance($cm->id);
         $othermoodleoverflow = $this->getDataGenerator()->create_module('moodleoverflow', ['course' => $course->id]);
-        list($author, $user, $otheruser) = $this->create_users($course, 3);
+        [$author, $user, $otheruser] = $this->create_users($course, 3);
 
         // Post in both of the moodleoverflows.
-        list($fd1) = $this->generator->post_to_forum($moodleoverflow, $author);
-        list($ofd1) = $this->generator->post_to_forum($othermoodleoverflow, $author);
+        [$fd1] = $this->generator->post_to_forum($moodleoverflow, $author);
+        [$ofd1] = $this->generator->post_to_forum($othermoodleoverflow, $author);
 
         // Subscribe the user to the discussions.
         subscriptions::subscribe_user_to_discussion($user->id, $fd1, $context);
@@ -1181,11 +1190,11 @@ public function test_get_users_in_context_with_read_post_tracking(): void {
 
         $othermoodleoverflow = $this->getDataGenerator()->create_module('moodleoverflow', ['course' => $course->id]);
         $othercm = get_coursemodule_from_instance('moodleoverflow', $othermoodleoverflow->id);
-        list($author, $user, $otheruser) = $this->create_users($course, 3);
+        [$author, $user, $otheruser] = $this->create_users($course, 3);
 
         // Post in both of the moodleoverflows.
-        list(, $fp1) = $this->generator->post_to_forum($moodleoverflow, $author);
-        list(, $ofp1) = $this->generator->post_to_forum($othermoodleoverflow, $author);
+        [, $fp1] = $this->generator->post_to_forum($moodleoverflow, $author);
+        [, $ofp1] = $this->generator->post_to_forum($othermoodleoverflow, $author);
 
         // Add read information for those users.
         readtracking::moodleoverflow_add_read_record($user->id, $fp1->id);
@@ -1222,7 +1231,7 @@ public function test_get_users_in_context_with_tracking_preferences(): void {
         $othermoodleoverflow = $this->getDataGenerator()->create_module('moodleoverflow', ['course' => $course->id]);
         $othercm = get_coursemodule_from_instance('moodleoverflow', $othermoodleoverflow->id);
         $othercontext = \context_module::instance($othercm->id);
-        list(, $user, $otheruser) = $this->create_users($course, 3);
+        [, $user, $otheruser] = $this->create_users($course, 3);
 
         // Stop tracking the read posts.
         readtracking::moodleoverflow_stop_tracking($moodleoverflow->id, $user->id);
@@ -1263,8 +1272,8 @@ public function test_grades(): void {
         $cm = get_coursemodule_from_instance('moodleoverflow', $forum->id);
         $context = \context_module::instance($cm->id);
 
-        list($user, $user2) = $this->create_and_enrol_users($course, 2);
-        list( , $post) = $this->generator->post_to_forum($forum, $user);
+        [$user, $user2] = $this->create_and_enrol_users($course, 2);
+        [ , $post] = $this->generator->post_to_forum($forum, $user);
         ratings::moodleoverflow_add_rating($forum, $post->id, RATING_UPVOTE, $cm, $user2->id);
         moodleoverflow_update_all_grades_for_cm($forum->id);
         $grades = grade_get_grades($course->id, 'mod', 'moodleoverflow', $forum->id, [$user->id, $user2->id]);
diff --git a/tests/ratings_test.php b/tests/ratings_test.php
index 5c3682ce5ed..60d91c5f98c 100644
--- a/tests/ratings_test.php
+++ b/tests/ratings_test.php
@@ -366,7 +366,8 @@ private function set_votesdifference() {
         foreach ([$this->answer1, $this->answer2, $this->answer3, $this->answer4, $this->answer5, $this->answer6] as $answer) {
             $answer->upvotes = 1;
             $answer->downvotes = 1;
-            $answer->votesdifference = $answer->upvotes - $answer->downvotes;;
+            $answer->votesdifference = $answer->upvotes - $answer->downvotes;
+            ;
         }
     }
 
@@ -536,7 +537,7 @@ private function create_twogroups($group1, $group2) {
      * @param array $orderposts
      * @return void
      */
-    private function process_groups(String $group1, string $group2, array $orderposts = []) {
+    private function process_groups(string $group1, string $group2, array $orderposts = []) {
         $this->create_twogroups($group1, $group2);
         $posts = [$this->post, $this->answer1, $this->answer2, $this->answer3, $this->answer4, $this->answer5, $this->answer6];
         $rightorder = [$this->post, $this->answer2, $this->answer1, $this->answer3, $this->answer6, $this->answer5, $this->answer4];
@@ -553,7 +554,7 @@ private function process_groups(String $group1, string $group2, array $orderpost
      * @param object $answer
      */
     private function set_group(string $group, object $answer) {
-        switch($group) {
+        switch ($group) {
             case 'sh':
                 $answer->markedhelpful = 1;
                 $answer->markedsolution = 1;
diff --git a/tests/readtracking_test.php b/tests/readtracking_test.php
index 4d78b9e89e7..91440f92984 100644
--- a/tests/readtracking_test.php
+++ b/tests/readtracking_test.php
@@ -39,7 +39,6 @@
  * @covers \readtracking
  */
 final class readtracking_test extends advanced_testcase {
-
     /**
      * Test the logic in the moodleoverflow_can_track_moodleoverflows() function.
      */
diff --git a/tests/review_test.php b/tests/review_test.php
index dce3b3f9ef8..be2e3811622 100644
--- a/tests/review_test.php
+++ b/tests/review_test.php
@@ -45,7 +45,6 @@
  * @covers \mod_moodleoverflow_external::review_reject_post
  */
 final class review_test extends \advanced_testcase {
-
     /** @var \mod_moodleoverflow_generator $generator */
     private $generator;
     /**
@@ -280,8 +279,8 @@ private function assert_matches_properties($expected, $actual) {
     private function create_post($options) {
         $moodleoverflow = $this->getDataGenerator()->create_module('moodleoverflow', $options);
 
-        list(, $teacherpost) = $this->generator->post_to_forum($moodleoverflow, $this->teacher);
-        list(, $studentpost) = $this->generator->post_to_forum($moodleoverflow, $this->student);
+        [, $teacherpost] = $this->generator->post_to_forum($moodleoverflow, $this->teacher);
+        [, $studentpost] = $this->generator->post_to_forum($moodleoverflow, $this->student);
 
         return ['teacherpost' => $teacherpost, 'studentpost' => $studentpost];
     }
@@ -299,20 +298,28 @@ private function create_post($options) {
     private function check_mail_records($teacherpost, $studentpost, $review1, $review2, $mailed) {
         global $DB;
 
-        $this->assert_matches_properties(['mailed' => MOODLEOVERFLOW_MAILED_PENDING,
+        $this->assert_matches_properties(
+            ['mailed' => MOODLEOVERFLOW_MAILED_PENDING,
                                           'reviewed' => $review1, 'timereviewed' => null, ],
-            $DB->get_record('moodleoverflow_posts', ['id' => $teacherpost->id]));
-        $this->assert_matches_properties(['mailed' => MOODLEOVERFLOW_MAILED_PENDING,
+            $DB->get_record('moodleoverflow_posts', ['id' => $teacherpost->id])
+        );
+        $this->assert_matches_properties(
+            ['mailed' => MOODLEOVERFLOW_MAILED_PENDING,
                                           'reviewed' => $review2, 'timereviewed' => null, ],
-            $DB->get_record('moodleoverflow_posts', ['id' => $studentpost->id]));
+            $DB->get_record('moodleoverflow_posts', ['id' => $studentpost->id])
+        );
 
         $this->run_send_notification_mails();
         $this->run_send_review_mails();
 
-        $this->assert_matches_properties(['mailed' => MOODLEOVERFLOW_MAILED_SUCCESS,
+        $this->assert_matches_properties(
+            ['mailed' => MOODLEOVERFLOW_MAILED_SUCCESS,
                                           'reviewed' => $review1, 'timereviewed' => null, ],
-            $DB->get_record('moodleoverflow_posts', ['id' => $teacherpost->id]));
-        $this->assert_matches_properties(['mailed' => $mailed, 'reviewed' => $review2, 'timereviewed' => null],
-            $DB->get_record('moodleoverflow_posts', ['id' => $studentpost->id]));
+            $DB->get_record('moodleoverflow_posts', ['id' => $teacherpost->id])
+        );
+        $this->assert_matches_properties(
+            ['mailed' => $mailed, 'reviewed' => $review2, 'timereviewed' => null],
+            $DB->get_record('moodleoverflow_posts', ['id' => $studentpost->id])
+        );
     }
 }
diff --git a/tests/subscriptions_test.php b/tests/subscriptions_test.php
index e5a695249c0..f44232a2f6d 100644
--- a/tests/subscriptions_test.php
+++ b/tests/subscriptions_test.php
@@ -39,7 +39,6 @@
  * @covers \subscriptions
  */
 final class subscriptions_test extends advanced_testcase {
-
     /**
      * Test setUp.
      */
@@ -125,7 +124,7 @@ public function test_subscription_modes(): void {
         $modulecontext = \context_module::instance($moodleoverflow->cmid);
 
         // Create a user enrolled in the course as a student.
-        list ($user) = $this->helper_create_users($course, 1);
+         [$user] = $this->helper_create_users($course, 1);
 
         // Must be logged in as the current user.
         $this->setUser($user);
@@ -133,8 +132,10 @@ public function test_subscription_modes(): void {
         // Test the forced subscription.
         subscriptions::set_subscription_mode($moodleoverflow->id, MOODLEOVERFLOW_FORCESUBSCRIBE);
         $moodleoverflow = $DB->get_record('moodleoverflow', ['id' => $moodleoverflow->id]);
-        $this->assertEquals(MOODLEOVERFLOW_FORCESUBSCRIBE,
-            subscriptions::get_subscription_mode($moodleoverflow));
+        $this->assertEquals(
+            MOODLEOVERFLOW_FORCESUBSCRIBE,
+            subscriptions::get_subscription_mode($moodleoverflow)
+        );
         $this->assertTrue(subscriptions::is_forcesubscribed($moodleoverflow));
         $this->assertFalse(subscriptions::is_subscribable($moodleoverflow, $modulecontext));
         $this->assertFalse(subscriptions::subscription_disabled($moodleoverflow));
@@ -178,7 +179,7 @@ public function test_unsubscribable_moodleoverflows(): void {
         $modulecontext = \context_module::instance($cm->id);
 
         // Create a user enrolled in the course as a student.
-        list ($user) = $this->helper_create_users($course, 1);
+         [$user] = $this->helper_create_users($course, 1);
 
         // Must be logged in as the current user.
         $this->setUser($user);
@@ -225,11 +226,11 @@ public function test_moodleoverflow_toggle_as_other(): void {
         $moodleoverflow = $this->getDataGenerator()->create_module('moodleoverflow', $options);
         $cm = get_coursemodule_from_instance('moodleoverflow', $moodleoverflow->id);
         $modulecontext = \context_module::instance($cm->id);
-        list ($author) = $this->helper_create_users($course, 1);
+         [$author] = $this->helper_create_users($course, 1);
 
         // Post a discussion to the moodleoverflow.
         $discussion = new \stdClass();
-        list($discussion->id, $post) = $this->helper_post_to_moodleoverflow($moodleoverflow, $author);
+        [$discussion->id, $post] = $this->helper_post_to_moodleoverflow($moodleoverflow, $author);
         unset($post);
         $discussion->moodleoverflow = $moodleoverflow->id;
 
@@ -326,18 +327,22 @@ public function test_moodleoverflow_discussion_subscription_moodleoverflow_unsub
         $moodleoverflow = $this->getDataGenerator()->create_module('moodleoverflow', $options);
 
         // Create users enrolled in the course as students.
-        list($author) = $this->helper_create_users($course, 1);
+        [$author] = $this->helper_create_users($course, 1);
 
         // Check that the user is currently not subscribed to the moodleoverflow.
         $this->assertFalse(subscriptions::is_subscribed($author->id, $moodleoverflow, $moodleoverflow));
 
         // Post a discussion to the moodleoverflow.
-        list($discussion, $post) = $this->helper_post_to_moodleoverflow($moodleoverflow, $author);
+        [$discussion, $post] = $this->helper_post_to_moodleoverflow($moodleoverflow, $author);
         unset($post);
 
         // Check that the user is unsubscribed from the discussion too.
-        $this->assertFalse(subscriptions::is_subscribed($author->id, $moodleoverflow,
-            $moodleoverflow, $discussion));
+        $this->assertFalse(subscriptions::is_subscribed(
+            $author->id,
+            $moodleoverflow,
+            $moodleoverflow,
+            $discussion
+        ));
     }
 
     /**
@@ -357,12 +362,15 @@ public function test_moodleoverflow_discussion_subscription_moodleoverflow_subsc
         $modulecontext = \context_module::instance($cm->id);
 
         // Create users enrolled in the course as students.
-        list($author) = $this->helper_create_users($course, 1);
+        [$author] = $this->helper_create_users($course, 1);
 
         // Enrol the user in the moodleoverflow.
         // If a subscription was added, we get the record ID.
-        $this->assertIsInt(subscriptions::subscribe_user($author->id,
-            $moodleoverflow, $modulecontext));
+        $this->assertIsInt(subscriptions::subscribe_user(
+            $author->id,
+            $moodleoverflow,
+            $modulecontext
+        ));
 
         // If we already have a subscription when subscribing the user, we get a boolean (true).
         $this->assertTrue(subscriptions::subscribe_user($author->id, $moodleoverflow, $modulecontext));
@@ -371,12 +379,16 @@ public function test_moodleoverflow_discussion_subscription_moodleoverflow_subsc
         $this->assertTrue(subscriptions::is_subscribed($author->id, $moodleoverflow, $modulecontext));
 
         // Post a discussion to the moodleoverflow.
-        list($discussion, $post) = $this->helper_post_to_moodleoverflow($moodleoverflow, $author);
+        [$discussion, $post] = $this->helper_post_to_moodleoverflow($moodleoverflow, $author);
         unset($post);
 
         // Check that the user is subscribed to the discussion too.
-        $this->assertTrue(subscriptions::is_subscribed($author->id, $moodleoverflow, $modulecontext,
-            $discussion));
+        $this->assertTrue(subscriptions::is_subscribed(
+            $author->id,
+            $moodleoverflow,
+            $modulecontext,
+            $discussion
+        ));
     }
 
     /**
@@ -396,31 +408,41 @@ public function test_moodleoverflow_discussion_subscription_moodleoverflow_unsub
         $modulecontext = \context_module::instance($cm->id);
 
         // Create a user enrolled in the course as a student.
-        list($author) = $this->helper_create_users($course, 1);
+        [$author] = $this->helper_create_users($course, 1);
 
         // Check that the user is currently not subscribed to the moodleoverflow.
         $this->assertFalse(subscriptions::is_subscribed($author->id, $moodleoverflow, $moodleoverflow));
 
         // Post a discussion to the moodleoverflow.
         $discussion = new \stdClass();
-        list($discussion->id, $post) = $this->helper_post_to_moodleoverflow($moodleoverflow, $author);
+        [$discussion->id, $post] = $this->helper_post_to_moodleoverflow($moodleoverflow, $author);
         unset($post);
         $discussion->moodleoverflow = $moodleoverflow->id;
 
         // Attempting to unsubscribe from the discussion should not make a change.
-        $this->assertFalse(subscriptions::unsubscribe_user_from_discussion($author->id,
-            $discussion, $modulecontext));
+        $this->assertFalse(subscriptions::unsubscribe_user_from_discussion(
+            $author->id,
+            $discussion,
+            $modulecontext
+        ));
 
         // Then subscribe them to the discussion.
-        $this->assertTrue(subscriptions::subscribe_user_to_discussion($author->id,
-            $discussion, $modulecontext));
+        $this->assertTrue(subscriptions::subscribe_user_to_discussion(
+            $author->id,
+            $discussion,
+            $modulecontext
+        ));
 
         // Check that the user is still unsubscribed from the moodleoverflow.
         $this->assertFalse(subscriptions::is_subscribed($author->id, $moodleoverflow, $moodleoverflow));
 
         // But subscribed to the discussion.
-        $this->assertTrue(subscriptions::is_subscribed($author->id, $moodleoverflow, $modulecontext,
-            $discussion->id));
+        $this->assertTrue(subscriptions::is_subscribed(
+            $author->id,
+            $moodleoverflow,
+            $modulecontext,
+            $discussion->id
+        ));
     }
 
     /**
@@ -440,7 +462,7 @@ public function test_moodleoverflow_discussion_subscription_moodleoverflow_subsc
         $modulecontext = \context_module::instance($cm->id);
 
         // Create two users enrolled in the course as students.
-        list($author) = $this->helper_create_users($course, 2);
+        [$author] = $this->helper_create_users($course, 2);
 
         // Enrol the student in the moodleoverflow.
         subscriptions::subscribe_user($author->id, $moodleoverflow, $modulecontext);
@@ -450,7 +472,7 @@ public function test_moodleoverflow_discussion_subscription_moodleoverflow_subsc
 
         // Post a discussion to the moodleoverflow.
         $discussion = new \stdClass();
-        list($discussion->id, $post) = $this->helper_post_to_moodleoverflow($moodleoverflow, $author);
+        [$discussion->id, $post] = $this->helper_post_to_moodleoverflow($moodleoverflow, $author);
         unset($post);
         $discussion->moodleoverflow = $moodleoverflow->id;
 
@@ -461,8 +483,12 @@ public function test_moodleoverflow_discussion_subscription_moodleoverflow_subsc
         $this->assertTrue(subscriptions::is_subscribed($author->id, $moodleoverflow, $modulecontext));
 
         // But unsubscribed from the discussion.
-        $this->assertFalse(subscriptions::is_subscribed($author->id, $moodleoverflow, $modulecontext,
-            $discussion->id));
+        $this->assertFalse(subscriptions::is_subscribed(
+            $author->id,
+            $moodleoverflow,
+            $modulecontext,
+            $discussion->id
+        ));
     }
 
     /**
@@ -479,12 +505,12 @@ public function test_moodleoverflow_discussion_toggle_moodleoverflow_subscribed(
         $moodleoverflow = $this->getDataGenerator()->create_module('moodleoverflow', $options);
         $cm = get_coursemodule_from_instance('moodleoverflow', $moodleoverflow->id);
         $modulecontext = \context_module::instance($cm->id);
-        list($author) = $this->helper_create_users($course, 2);
+        [$author] = $this->helper_create_users($course, 2);
         subscriptions::subscribe_user($author->id, $moodleoverflow, $modulecontext);
 
         // Post a discussion to the moodleoverflow.
         $discussion = new \stdClass();
-        list($discussion->id, $post) = $this->helper_post_to_moodleoverflow($moodleoverflow, $author);
+        [$discussion->id, $post] = $this->helper_post_to_moodleoverflow($moodleoverflow, $author);
         unset($post);
         $discussion->moodleoverflow = $moodleoverflow->id;
 
@@ -583,14 +609,14 @@ public function test_moodleoverflow_discussion_toggle_moodleoverflow_unsubscribe
         $moodleoverflow = $this->getDataGenerator()->create_module('moodleoverflow', $options);
         $cm = get_coursemodule_from_instance('moodleoverflow', $moodleoverflow->id);
         $modulecontext = \context_module::instance($cm->id);
-        list($author) = $this->helper_create_users($course, 2);
+        [$author] = $this->helper_create_users($course, 2);
 
         // Check that the user is currently unsubscribed to the moodleoverflow.
         $this->assertFalse(subscriptions::is_subscribed($author->id, $moodleoverflow, $modulecontext));
 
         // Post a discussion to the moodleoverflow.
         $discussion = new \stdClass();
-        list($discussion->id, $post) = $this->helper_post_to_moodleoverflow($moodleoverflow, $author);
+        [$discussion->id, $post] = $this->helper_post_to_moodleoverflow($moodleoverflow, $author);
         unset($post);
         $discussion->moodleoverflow = $moodleoverflow->id;
 
@@ -746,7 +772,7 @@ public function test_fetch_subscribed_users_discussion_subscriptions(): void {
 
         // Create the discussion.
         $discussion = new \stdClass();
-        list($discussion->id, $post) = $this->helper_post_to_moodleoverflow($moodleoverflow, $users[0]);
+        [$discussion->id, $post] = $this->helper_post_to_moodleoverflow($moodleoverflow, $users[0]);
         unset($post);
         $discussion->moodleoverflow = $moodleoverflow->id;
 
@@ -824,8 +850,12 @@ public function test_force_subscribed_to_moodleoverflow(): void {
         // Check that the user is currently subscribed to the moodleoverflow.
         $this->assertTrue(subscriptions::is_subscribed($user->id, $moodleoverflow, $context));
 
-        assign_capability('mod/moodleoverflow:allowforcesubscribe', CAP_PROHIBIT, $roleids['student'],
-            $context);
+        assign_capability(
+            'mod/moodleoverflow:allowforcesubscribe',
+            CAP_PROHIBIT,
+            $roleids['student'],
+            $context
+        );
         $context->mark_dirty();
         $this->assertFalse(has_capability('mod/moodleoverflow:allowforcesubscribe', $context, $user->id));
     }
@@ -976,7 +1006,7 @@ public function test_discussion_subscription_cache_prefill(): void {
         $author = $users[0];
         for ($i = 0; $i < 20; $i++) {
             $discussion = new \stdClass();
-            list($discussion->id, $post) = $this->helper_post_to_moodleoverflow($moodleoverflow, $author);
+            [$discussion->id, $post] = $this->helper_post_to_moodleoverflow($moodleoverflow, $author);
             unset($post);
             $discussion->moodleoverflow = $moodleoverflow->id;
             $discussions[] = $discussion;
@@ -1039,7 +1069,7 @@ public function test_discussion_subscription_cache_fill(): void {
         $author = $users[0];
         for ($i = 0; $i < 20; $i++) {
             $discussion = new \stdClass();
-            list($discussion->id, $post) = $this->helper_post_to_moodleoverflow($moodleoverflow, $author);
+            [$discussion->id, $post] = $this->helper_post_to_moodleoverflow($moodleoverflow, $author);
             unset($post);
             $discussion->moodleoverflow = $moodleoverflow->id;
             $discussions[] = $discussion;
@@ -1086,7 +1116,6 @@ public function test_discussion_subscription_cache_fill(): void {
         } else {
             $this->assertTrue(false, 'Unexpected amount of reads required to fill discussion subscription cache.');
         }
-
     }
 
     /**
@@ -1105,11 +1134,11 @@ public function test_moodleoverflow_subscribe_toggle_as_other_repeat_subscriptio
         $moodleoverflow = $this->getDataGenerator()->create_module('moodleoverflow', $options);
         $cm = get_coursemodule_from_instance('moodleoverflow', $moodleoverflow->id);
         $modulecontext = \context_module::instance($cm->id);
-        list($user) = $this->helper_create_users($course, 1);
+        [$user] = $this->helper_create_users($course, 1);
 
         // Post a discussion to the moodleoverflow.
         $discussion = new \stdClass();
-        list($discussion->id, $post) = $this->helper_post_to_moodleoverflow($moodleoverflow, $user);
+        [$discussion->id, $post] = $this->helper_post_to_moodleoverflow($moodleoverflow, $user);
         unset($post);
         $discussion->moodleoverflow = $moodleoverflow->id;
 
@@ -1263,7 +1292,9 @@ public function test_is_subscribable_loggedin($options, $expect): void {
         $this->getDataGenerator()->enrol_user($user->id, $course->id);
         $this->setUser($user);
 
-        $this->assertEquals($expect, subscriptions::is_subscribable($moodleoverflow,
-            \context_module::instance($moodleoverflow->cmid)));
+        $this->assertEquals($expect, subscriptions::is_subscribable(
+            $moodleoverflow,
+            \context_module::instance($moodleoverflow->cmid)
+        ));
     }
 }
diff --git a/tests/userstats_test.php b/tests/userstats_test.php
index 45a82819c95..41071946939 100644
--- a/tests/userstats_test.php
+++ b/tests/userstats_test.php
@@ -40,7 +40,6 @@
  * @covers \userstats_table
  */
 final class userstats_test extends \advanced_testcase {
-
     /** @var \stdClass test course */
     private $course;
 
@@ -144,7 +143,6 @@ public function test_activity(): void {
         $data = $this->create_statstable();
         $activity = $this->get_specific_userstats($data, $this->user1, 'forumactivity');
         $this->assertEquals(5, $activity);
-
     }
     /**
      * Test, if the reputation is calculated correctly.
@@ -158,8 +156,10 @@ public function test_reputation(): void {
         $this->create_solution($this->teacher, $this->discussion1[1], $this->answer1);
 
         // Calculate the forum reputation of user2.
-        $reputation = \mod_moodleoverflow\ratings::moodleoverflow_get_reputation_instance($this->moodleoverflow->id,
-                                                                                          $this->user2->id);
+        $reputation = \mod_moodleoverflow\ratings::moodleoverflow_get_reputation_instance(
+            $this->moodleoverflow->id,
+            $this->user2->id
+        );
         // Create the user statistics table for this course and save it in $data.
         $data = $this->create_statstable();
         $reputation2 = $this->get_specific_userstats($data, $this->user2, 'forumreputation');
diff --git a/tracking.php b/tracking.php
index 4c5c5b22247..b5e0513d24c 100644
--- a/tracking.php
+++ b/tracking.php
@@ -90,12 +90,10 @@
 
         // Redirect the user back to where he is coming from.
         redirect($returnpageurl, get_string('nownottracking', 'moodleoverflow', $info), 1);
-
     } else {
         // The insertion failed. Print an error message.
         throw new moodle_exception('cannottrack', 'moodleoverflow', get_local_referer(false));
     }
-
 } else {
     // The moodleoverflow instance is not tracked. The next step is to track.
 
@@ -109,7 +107,6 @@
 
         // Redirect the user back to where he is coming from.
         redirect($returnto, get_string('nowtracking', 'moodleoverflow', $info), 1);
-
     } else {
         // The deletion failed. Print an error message.
         throw new moodle_exception('cannottrack', 'moodleoverflow', get_local_referer(false));
diff --git a/userstats.php b/userstats.php
index 1b5eecf1658..be4922b526e 100644
--- a/userstats.php
+++ b/userstats.php
@@ -26,7 +26,7 @@
  */
 
 // Include config and locallib.
-require_once(__DIR__.'/../../config.php');
+require_once(__DIR__ . '/../../config.php');
 global $CFG, $PAGE, $DB, $OUTPUT, $SESSION;
 require_once($CFG->dirroot . '/mod/moodleoverflow/locallib.php');
 
@@ -64,10 +64,9 @@
     // Output starts here.
     echo $OUTPUT->header();
     echo $OUTPUT->heading('');
-    $table = new userstats_table('statisticstable' , $course->id, $moodleoverflow->id, $PAGE->url);
+    $table = new userstats_table('statisticstable', $course->id, $moodleoverflow->id, $PAGE->url);
     $table->out();
     echo $OUTPUT->footer();
 } else {
     redirect(new moodle_url('/'));
 }
-
diff --git a/view.php b/view.php
index 52b55a157a4..2b0aa5c4195 100644
--- a/view.php
+++ b/view.php
@@ -26,9 +26,9 @@
  */
 
 // Include config and locallib.
-require_once(__DIR__.'/../../config.php');
+require_once(__DIR__ . '/../../config.php');
 global $CFG, $PAGE, $DB, $OUTPUT, $SESSION, $USER;
-require_once($CFG->dirroot.'/mod/moodleoverflow/locallib.php');
+require_once($CFG->dirroot . '/mod/moodleoverflow/locallib.php');
 
 // Declare optional parameters.
 $id = optional_param('id', 0, PARAM_INT);       // Course Module ID.
@@ -129,8 +129,11 @@
     $reviewpost = \mod_moodleoverflow\review::get_first_review_post($moodleoverflow->id);
 
     if ($reviewpost) {
-        echo html_writer::link($reviewpost, get_string('review_needed', 'mod_moodleoverflow'),
-                ['class' => 'btn btn-danger my-2']);
+        echo html_writer::link(
+            $reviewpost,
+            get_string('review_needed', 'mod_moodleoverflow'),
+            ['class' => 'btn btn-danger my-2']
+        );
     }
 }
 

From b31ed914b062754bf79c0a3b80bbb0483771f9ce Mon Sep 17 00:00:00 2001
From: tamaro <tamarowalter@yahoo.de>
Date: Wed, 17 Sep 2025 17:15:27 +0200
Subject: [PATCH 2/3] fix typo

---
 tests/ratings_test.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/ratings_test.php b/tests/ratings_test.php
index 60d91c5f98c..dc93fad9fa4 100644
--- a/tests/ratings_test.php
+++ b/tests/ratings_test.php
@@ -532,7 +532,7 @@ private function create_twogroups($group1, $group2) {
 
     /**
      * Executing the sort function and comparing the sorted post to the expected order.
-     * @param String $group1
+     * @param string $group1
      * @param string $group2
      * @param array $orderposts
      * @return void

From 04197ad6a15e78f59c449226292704200ebf24a2 Mon Sep 17 00:00:00 2001
From: "github-actions[bot]" <github-actions[bot]@users.noreply.github.com>
Date: Wed, 17 Sep 2025 15:15:45 +0000
Subject: [PATCH 3/3] Sync with Learnweb's centralized pull request template

---
 .github/PULL_REQUEST_TEMPLATE.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/PULL_REQUEST_TEMPLATE.md b/.github/PULL_REQUEST_TEMPLATE.md
index 81ba4368ddf..cabc576d79c 100644
--- a/.github/PULL_REQUEST_TEMPLATE.md
+++ b/.github/PULL_REQUEST_TEMPLATE.md
@@ -1,4 +1,4 @@
-> **Note:** Please fill out all required sections and remove irrelevant ones.
+> **Note:** Please fill out all relevant sections and remove irrelevant ones.
 ### 🔀 Purpose of this PR:
 
 - [ ] Fixes a bug