diff --git a/lbplanner/classes/helpers/config_helper.php b/lbplanner/classes/helpers/config_helper.php
index 37a1ff96..2e0e9f5f 100644
--- a/lbplanner/classes/helpers/config_helper.php
+++ b/lbplanner/classes/helpers/config_helper.php
@@ -20,7 +20,6 @@
 use core_customfield\category_controller;
 use customfield_select\field_controller;
 use local_modcustomfields\customfield\mod_handler;
-
 use local_lbplanner\enums\SETTINGS;
 
 /**
@@ -40,9 +39,7 @@ public static function add_customfield(): void {
         // Check if the category is already created and only create it if it doesn't exist.
         // Check if plugin "modcustomfields" is installed and create the category and the custom field.
         if (self::get_category_id() === -1) {
-
             if (array_key_exists('modcustomfields', core_component::get_plugin_list('local'))) {
-
                 $handler = mod_handler::create();
                 $categoryid = $handler->create_category('LB Planer');
 
diff --git a/lbplanner/classes/helpers/course_helper.php b/lbplanner/classes/helpers/course_helper.php
index 0ddff628..177d4cd1 100644
--- a/lbplanner/classes/helpers/course_helper.php
+++ b/lbplanner/classes/helpers/course_helper.php
@@ -22,7 +22,6 @@
 use DateTimeImmutable;
 use dml_exception;
 use dml_write_exception;
-
 use local_lbplanner\model\course;
 
 /**
@@ -34,7 +33,6 @@
  * @license    https://creativecommons.org/licenses/by-nc-sa/4.0/ CC-BY-NC-SA 4.0 International or later
  */
 class course_helper {
-
     /**
      * The course table used by the LP
      */
@@ -99,8 +97,8 @@ public static function get_eduplanner_courses(bool $onlyenrolled): array {
                  But their perf is so abysmal that we have to roll our own function.
                  The code is largely leaned on how these functions work internally, optimized for our purposes. */
         if ($onlyenrolled) {
-            $mdlcourses = $DB->get_records_sql("
-                SELECT c.* FROM {course} c
+            $mdlcourses = $DB->get_records_sql(
+                "SELECT c.* FROM {course} c
                 INNER JOIN {enrol} e ON e.courseid = c.id
                 INNER JOIN {user_enrolments} ue ON (ue.enrolid = e.id AND ue.userid = :userid)
                 INNER JOIN {tag_instance} ti ON (ti.itemid = c.id)
@@ -129,8 +127,8 @@ public static function get_eduplanner_courses(bool $onlyenrolled): array {
                 ]
             );
         } else {
-            $mdlcourses = $DB->get_records_sql("
-                SELECT c.* FROM {course} c
+            $mdlcourses = $DB->get_records_sql(
+                "SELECT c.* FROM {course} c
                 INNER JOIN {tag_instance} ti ON (ti.itemid = c.id)
                 WHERE (
                        c.enddate > :courseexpiredate
@@ -156,7 +154,9 @@ public static function get_eduplanner_courses(bool $onlyenrolled): array {
             } else {
                 // IF not create an Object to be put into the Eduplanner database.
                 $fetchedcourse = new course(
-                    0, $courseid, $userid,
+                    0,
+                    $courseid,
+                    $userid,
                     course::prepare_shortname($mdlcourse->shortname),
                     self::COLORS[array_rand(self::COLORS)],
                     false,
diff --git a/lbplanner/classes/helpers/invite_helper.php b/lbplanner/classes/helpers/invite_helper.php
index abb50b80..2800d6ae 100644
--- a/lbplanner/classes/helpers/invite_helper.php
+++ b/lbplanner/classes/helpers/invite_helper.php
@@ -28,7 +28,6 @@
  * @license    https://creativecommons.org/licenses/by-nc-sa/4.0/ CC-BY-NC-SA 4.0 International or later
  */
 class invite_helper {
-
     /**
      * Returns the data structure of an invite.
      *
@@ -55,7 +54,7 @@ public static function structure(): external_single_structure {
     public static function assert_invite_pending(int $status) {
         if ($status !== PLAN_INVITE_STATE::PENDING) {
             $name = PLAN_INVITE_STATE::name_from($status);
-            throw new \moodle_exception('Invite already '.$name);
+            throw new \moodle_exception("Invite already {$name}");
         }
     }
 }
diff --git a/lbplanner/classes/helpers/kanban_helper.php b/lbplanner/classes/helpers/kanban_helper.php
index 4e7a4af6..969355a7 100644
--- a/lbplanner/classes/helpers/kanban_helper.php
+++ b/lbplanner/classes/helpers/kanban_helper.php
@@ -28,7 +28,6 @@
  * @license    https://creativecommons.org/licenses/by-nc-sa/4.0/ CC-BY-NC-SA 4.0 International or later
  */
 class kanban_helper {
-
     /**
      * Table for storing kanban board entries.
      */
@@ -76,7 +75,10 @@ public static function set_entry(kanbanentry $entry): void {
             $DB->delete_records(self::TABLE, ['userid' => $entry->userid, 'cmid' => $entry->cmid]);
         } catch (\dml_exception $e) {
             // Needed for low-reporting contexts such as a prod server.
-            echo 'error while trying to delete preexisting kanban entries: '.$e->getMessage()."\nFurther info:\n".$e->debuginfo;
+            echo 'error while trying to delete preexisting kanban entries: '
+                . $e->getMessage()
+                . "\nFurther info:\n"
+                . $e->debuginfo;
             var_dump($entry);
             throw $e;
         }
diff --git a/lbplanner/classes/helpers/modules_helper.php b/lbplanner/classes/helpers/modules_helper.php
index d5b4768f..bfa1743a 100644
--- a/lbplanner/classes/helpers/modules_helper.php
+++ b/lbplanner/classes/helpers/modules_helper.php
@@ -36,7 +36,6 @@
  * Contains helper functions for working with modules.
  */
 class modules_helper {
-
     /**
      * Table where modules are stored.
      */
diff --git a/lbplanner/classes/helpers/plan_helper.php b/lbplanner/classes/helpers/plan_helper.php
index 3fb991f4..6e0fdd30 100644
--- a/lbplanner/classes/helpers/plan_helper.php
+++ b/lbplanner/classes/helpers/plan_helper.php
@@ -79,7 +79,8 @@ public static function get_owner(int $planid): int {
 
         $owner = $DB->get_field(
             self::ACCESS_TABLE,
-            'userid', ['planid' => $planid, 'accesstype' => PLAN_ACCESS_TYPE::OWNER]
+            'userid',
+            ['planid' => $planid, 'accesstype' => PLAN_ACCESS_TYPE::OWNER]
         );
 
         return intval($owner);
@@ -277,7 +278,9 @@ public static function remove_user(int $planid, int $userid, int $removeuserid):
 
         $oldaccess = $DB->get_record(
             self::ACCESS_TABLE,
-            ['planid' => $planid, 'userid' => $removeuserid], '*', MUST_EXIST
+            ['planid' => $planid, 'userid' => $removeuserid],
+            '*',
+            MUST_EXIST
         );
 
         $oldaccess->planid = $newplanid;
@@ -342,4 +345,3 @@ public static function timestamp_localtime_to_utc(int $localts) {
             ->getTimestamp();
     }
 }
-
diff --git a/lbplanner/classes/helpers/slot_helper.php b/lbplanner/classes/helpers/slot_helper.php
index 73be7c93..16a146d2 100644
--- a/lbplanner/classes/helpers/slot_helper.php
+++ b/lbplanner/classes/helpers/slot_helper.php
@@ -26,12 +26,10 @@
 namespace local_lbplanner\helpers;
 
 use core\context\system as context_system;
-
 use DateTimeImmutable;
 use DateTimeInterface;
 use DateTimeZone;
-use local_lbplanner\enums\CAPABILITY;
-use local_lbplanner\enums\WEEKDAY;
+use local_lbplanner\enums\{CAPABILITY, WEEKDAY};
 use local_lbplanner\model\{slot, reservation, slot_filter};
 
 /**
@@ -62,8 +60,8 @@ class slot_helper {
         '14:10',
         '15:10',
         '16:00',
-        '17:00',  // All units after this point are 45min long instead of the usual 50.
-        '17:45',  // We will assume 50min anyway because it's easier that way.
+        '17:00', // All units after this point are 45min long instead of the usual 50.
+        '17:45', // We will assume 50min anyway because it's easier that way.
         '18:45',
         '19:30',
         '20:15',
@@ -119,8 +117,8 @@ public static function get_supervisor_slots(int $supervisorid): array {
         global $DB;
 
         $slots = $DB->get_records_sql(
-            'SELECT slot.* FROM {'.self::TABLE_SLOTS.'} as slot '.
-            'INNER JOIN {'.self::TABLE_SUPERVISORS.'} as supervisor ON supervisor.slotid=slot.id '.
+            'SELECT slot.* FROM {' . self::TABLE_SLOTS . '} as slot ' .
+            'INNER JOIN {' . self::TABLE_SUPERVISORS . '} as supervisor ON supervisor.slotid=slot.id ' .
             'WHERE supervisor.userid=?',
             [$supervisorid]
         );
@@ -332,7 +330,7 @@ public static function filter_slots_for_time(array $allslots, int $range): array
     public static function calculate_slot_datetime(slot $slot, DateTimeImmutable $now): DateTimeImmutable {
         $slotdaytime = self::SCHOOL_UNITS[$slot->startunit];
         // Move to next day this weekday occurs (doesn't move if it's the same as today).
-        $slotdatetime = $now->modify('this '.WEEKDAY::name_from($slot->weekday)." {$slotdaytime}");
+        $slotdatetime = $now->modify('this ' . WEEKDAY::name_from($slot->weekday) . " {$slotdaytime}");
         if ($slotdatetime === false) {
             throw new \coding_exception('error while calculating slot datetime');
         }
@@ -357,7 +355,7 @@ public static function amend_date_with_unit_time(int $unit, DateTimeInterface $d
         $utctz = new DateTimeZone('UTC');
         $daytime = self::SCHOOL_UNITS[$unit];
 
-        return DateTimeImmutable::createFromFormat('Y-m-d G:i', $date->format('Y-m-d ').$daytime, $utctz);
+        return DateTimeImmutable::createFromFormat('Y-m-d G:i', $date->format('Y-m-d ') . $daytime, $utctz);
     }
 
     /**
diff --git a/lbplanner/classes/helpers/user_helper.php b/lbplanner/classes/helpers/user_helper.php
index ca10e824..6dc662f2 100644
--- a/lbplanner/classes/helpers/user_helper.php
+++ b/lbplanner/classes/helpers/user_helper.php
@@ -19,9 +19,7 @@
 use dml_exception;
 use stdClass;
 use core_user;
-
-use local_lbplanner\enums\NOTIF_TRIGGER;
-use local_lbplanner\enums\PLAN_ACCESS_TYPE;
+use local_lbplanner\enums\{NOTIF_TRIGGER, PLAN_ACCESS_TYPE};
 use local_lbplanner\model\user;
 
 /**
@@ -33,7 +31,6 @@
  * @license    https://creativecommons.org/licenses/by-nc-sa/4.0/ CC-BY-NC-SA 4.0 International or later
  */
 class user_helper {
-
     /**
      * Name of the user database
      */
diff --git a/lbplanner/classes/model/kanbanentry.php b/lbplanner/classes/model/kanbanentry.php
index 1f4d7417..e4289d11 100644
--- a/lbplanner/classes/model/kanbanentry.php
+++ b/lbplanner/classes/model/kanbanentry.php
@@ -127,7 +127,7 @@ public static function api_structure(): external_single_structure {
                 'id' => new external_value(PARAM_INT, 'kanban board ID'),
                 'userid' => new external_value(PARAM_INT, 'ID of the owner of this entry'),
                 'cmid' => new external_value(PARAM_INT, 'ID of the course-module'),
-                'column' => new external_value(PARAM_TEXT, 'which column this module is in '.KANBANCOL_TYPE::format()),
+                'column' => new external_value(PARAM_TEXT, 'which column this module is in ' . KANBANCOL_TYPE::format()),
             ]
         );
     }
diff --git a/lbplanner/classes/model/module.php b/lbplanner/classes/model/module.php
index 98dd6a18..f534d46e 100644
--- a/lbplanner/classes/model/module.php
+++ b/lbplanner/classes/model/module.php
@@ -303,7 +303,6 @@ public function get_grade(int $userid): ?int {
                 $mdlgrade = end($mdlgrades);
 
                 if ($mdlgrade->grade > 0) {
-
                     $grade  = modules_helper::determine_uinified_grade(
                         $mdlgrade->grade,
                         $moduleboundaries->grademax,
@@ -349,9 +348,9 @@ public static function api_structure_personal(): external_single_structure {
                 'cmid' => new external_value(PARAM_INT, 'Course module ID'),
                 'name' => new external_value(PARAM_TEXT, 'Shortened module name (max. 5 chars)'),
                 'courseid' => new external_value(PARAM_INT, 'Course ID'),
-                'status' => new external_value(PARAM_INT, 'Module status '.MODULE_STATUS::format()),
-                'type' => new external_value(PARAM_INT, 'Module type '.MODULE_TYPE::format()),
-                'grade' => new external_value(PARAM_INT, 'The grade of the module '.MODULE_GRADE::format()),
+                'status' => new external_value(PARAM_INT, 'Module status ' . MODULE_STATUS::format()),
+                'type' => new external_value(PARAM_INT, 'Module type ' . MODULE_TYPE::format()),
+                'grade' => new external_value(PARAM_INT, 'The grade of the module ' . MODULE_GRADE::format()),
                 'duedate' => new external_value(PARAM_INT, 'The deadline of the module set by the teacher'),
             ]
         );
diff --git a/lbplanner/classes/model/reservation.php b/lbplanner/classes/model/reservation.php
index 599f50b3..d89b2f5b 100644
--- a/lbplanner/classes/model/reservation.php
+++ b/lbplanner/classes/model/reservation.php
@@ -26,9 +26,8 @@
 namespace local_lbplanner\model;
 
 use DateTimeImmutable;
-
-use core_external\{external_single_structure, external_value};
 use DateTimeZone;
+use core_external\{external_single_structure, external_value};
 use local_lbplanner\model\slot;
 use local_lbplanner\helpers\slot_helper;
 
diff --git a/lbplanner/classes/model/slot.php b/lbplanner/classes/model/slot.php
index a09370ae..534e33dd 100644
--- a/lbplanner/classes/model/slot.php
+++ b/lbplanner/classes/model/slot.php
@@ -27,7 +27,6 @@
 
 use local_lbplanner\enums\WEEKDAY;
 use local_lbplanner\helpers\slot_helper;
-
 use core_external\{external_multiple_structure, external_single_structure, external_value};
 use moodle_exception;
 
@@ -90,11 +89,17 @@ class slot {
     public function __construct(int $id, int $startunit, int $duration, int $weekday, string $room, int $size) {
         $this->id = $id;
         if ($startunit <= 0 || $startunit > slot_helper::SCHOOL_UNIT_MAX) {
-            throw new \moodle_exception("slot's startunit must be >0 and <=".slot_helper::SCHOOL_UNIT_MAX.", but is {$startunit}");
+            throw new \moodle_exception(
+                "slot's startunit must be >0 and <="
+                . slot_helper::SCHOOL_UNIT_MAX
+                . ", but is {$startunit}"
+            );
         }
         if ($duration <= 0 || ($startunit + $duration - 1) > slot_helper::SCHOOL_UNIT_MAX) {
             throw new \moodle_exception(
-                "slot's duration must be >0 and can't exceed ".slot_helper::SCHOOL_UNIT_MAX." with startunit, but is {$duration}"
+                "slot's duration must be >0 and can't exceed "
+                . slot_helper::SCHOOL_UNIT_MAX
+                . " with startunit, but is {$duration}"
             );
         }
         $this->startunit = $startunit;
@@ -102,7 +107,10 @@ public function __construct(int $id, int $startunit, int $duration, int $weekday
         $this->weekday = WEEKDAY::from($weekday);
         if (strlen($room) <= 0 && strlen($room) > slot_helper::ROOM_MAXLENGTH) {
             throw new \moodle_exception(
-                "room name's length must be >0 and <=".slot_helper::ROOM_MAXLENGTH.", but is ".strlen($room)
+                "room name's length must be >0 and <="
+                . slot_helper::ROOM_MAXLENGTH
+                . ", but is "
+                . strlen($room)
             );
         }
         $this->room = $room;
@@ -169,7 +177,7 @@ public function validate(): void {
         if (strlen($this->room) <= 1) {
             throw new moodle_exception('room name has to be at least 2 characters long');
         } else if (strlen($this->room) > slot_helper::ROOM_MAXLENGTH) {
-            throw new moodle_exception('room name has a maximum of '.slot_helper::ROOM_MAXLENGTH.' characters');
+            throw new moodle_exception('room name has a maximum of ' . slot_helper::ROOM_MAXLENGTH . ' characters');
         }
         // Validating size.
         if ($this->size < 0) {
@@ -313,7 +321,7 @@ public static function api_structure(): external_single_structure {
                 'id' => new external_value(PARAM_INT, 'slot ID'),
                 'startunit' => new external_value(PARAM_INT, 'unit this slot starts in (8:00 is unit 1)'),
                 'duration' => new external_value(PARAM_INT, 'duration of the slot in units'),
-                'weekday' => new external_value(PARAM_INT, 'The day this unit repeats weekly: '.WEEKDAY::format()),
+                'weekday' => new external_value(PARAM_INT, 'The day this unit repeats weekly: ' . WEEKDAY::format()),
                 'room' => new external_value(PARAM_TEXT, 'The room this slot is for'),
                 'size' => new external_value(PARAM_INT, 'total capacity of the slot'),
                 'fullness' => new external_value(PARAM_INT, 'how many people have already reserved this slot'),
diff --git a/lbplanner/classes/model/user.php b/lbplanner/classes/model/user.php
index 7bedd26b..3cbfe855 100644
--- a/lbplanner/classes/model/user.php
+++ b/lbplanner/classes/model/user.php
@@ -28,10 +28,8 @@
 use core\context\system as context_system;
 use core_external\{external_single_structure, external_value};
 use user_picture;
-
-use local_lbplanner\enums\{CAPABILITY, CAPABILITY_FLAG, KANBANCOL_TYPE, KANBANCOL_TYPE_ORNONE};
-use local_lbplanner\helpers\plan_helper;
-use local_lbplanner\helpers\user_helper;
+use local_lbplanner\enums\{CAPABILITY, CAPABILITY_FLAG, KANBANCOL_TYPE_ORNONE};
+use local_lbplanner\helpers\{plan_helper, user_helper};
 
 /**
  * Model class for model
@@ -419,15 +417,15 @@ public static function api_structure(): external_single_structure {
                 'showcolumncolors' => new external_value(PARAM_BOOL, 'Whether column colors should show in kanban board'),
                 'automovecompletedtasks' => new external_value(
                     PARAM_TEXT,
-                    'The kanban column to move a task to if completed '.KANBANCOL_TYPE_ORNONE::format()
+                    'The kanban column to move a task to if completed ' . KANBANCOL_TYPE_ORNONE::format()
                 ),
                 'automovesubmittedtasks' => new external_value(
                     PARAM_TEXT,
-                    'The kanban column to move a task to if submitted '.KANBANCOL_TYPE_ORNONE::format()
+                    'The kanban column to move a task to if submitted ' . KANBANCOL_TYPE_ORNONE::format()
                 ),
                 'automoveoverduetasks' => new external_value(
                     PARAM_TEXT,
-                    'The kanban column to move a task to if overdue '.KANBANCOL_TYPE_ORNONE::format()
+                    'The kanban column to move a task to if overdue ' . KANBANCOL_TYPE_ORNONE::format()
                 ),
                 'capabilities' => new external_value(PARAM_INT, 'The capabilities of the user represented as a bitmask value'),
                 'vintage' => new external_value(PARAM_TEXT, 'The vintage of the user', VALUE_DEFAULT),
diff --git a/lbplanner/classes/polyfill/Enum.php b/lbplanner/classes/polyfill/Enum.php
index 82a5d244..0620c828 100644
--- a/lbplanner/classes/polyfill/Enum.php
+++ b/lbplanner/classes/polyfill/Enum.php
@@ -50,7 +50,7 @@ private static function find($value, bool $try): ?EnumCase {
         if ($try) {
             return null;
         } else {
-            throw new \moodle_exception("value {$value} cannot be represented as a value in enum ".static::class);
+            throw new \moodle_exception("value {$value} cannot be represented as a value in enum " . static::class);
         }
     }
     /**
@@ -70,7 +70,7 @@ private static function find_from_name(string $name, bool $try): ?EnumCase {
         if ($try) {
             return null;
         } else {
-            throw new \moodle_exception("name {$name} doesn't exist in ".static::class);
+            throw new \moodle_exception("name {$name} doesn't exist in " . static::class);
         }
     }
     /**
diff --git a/lbplanner/classes/polyfill/EnumCase.php b/lbplanner/classes/polyfill/EnumCase.php
index fdfd3bff..8ee536e9 100644
--- a/lbplanner/classes/polyfill/EnumCase.php
+++ b/lbplanner/classes/polyfill/EnumCase.php
@@ -25,8 +25,6 @@
 
 namespace local_lbplanner\polyfill;
 
-defined('MOODLE_INTERNAL') || die();
-
 // TODO: revert to native enums once we migrate to php8.
 
 /**
@@ -47,4 +45,4 @@ public function __construct(string $name, $value) {
         $this->name = $name;
         $this->value = $value;
     }
-};
+}
diff --git a/lbplanner/db/uninstall.php b/lbplanner/db/uninstall.php
index 6f2c06a2..9e28ea3f 100644
--- a/lbplanner/db/uninstall.php
+++ b/lbplanner/db/uninstall.php
@@ -35,4 +35,3 @@ function xmldb_local_lbplanner_uninstall() {
     $tag = core_tag_tag::get_by_name(core_tag_collection::get_default(), course_helper::EDUPLANNER_TAG, strictness:MUST_EXIST);
     core_tag_tag::delete_tags($tag->id);
 }
-
diff --git a/lbplanner/db/upgrade.php b/lbplanner/db/upgrade.php
index 5c41670c..4192888c 100644
--- a/lbplanner/db/upgrade.php
+++ b/lbplanner/db/upgrade.php
@@ -24,7 +24,6 @@
  */
 
 use core\context\course as context_course;
-
 use local_lbplanner\helpers\{config_helper, course_helper};
 
 /**
diff --git a/lbplanner/services/courses/get_all_courses.php b/lbplanner/services/courses/get_all_courses.php
index 4f71caea..dd3eda50 100644
--- a/lbplanner/services/courses/get_all_courses.php
+++ b/lbplanner/services/courses/get_all_courses.php
@@ -31,7 +31,6 @@
  * @license https://creativecommons.org/licenses/by-nc-sa/4.0/ CC-BY-NC-SA 4.0 International or later
  */
 class courses_get_all_courses extends \core_external\external_api {
-
     /**
      * Has no Parameters
      * @return external_function_parameters
diff --git a/lbplanner/services/courses/get_my_courses.php b/lbplanner/services/courses/get_my_courses.php
index 8263c7dd..fb14ac5f 100644
--- a/lbplanner/services/courses/get_my_courses.php
+++ b/lbplanner/services/courses/get_my_courses.php
@@ -17,7 +17,6 @@
 namespace local_lbplanner_services;
 
 use core_external\{external_function_parameters, external_multiple_structure};
-
 use local_lbplanner\helpers\course_helper;
 use local_lbplanner\model\course;
 
@@ -30,7 +29,6 @@
  * @license https://creativecommons.org/licenses/by-nc-sa/4.0/ CC-BY-NC-SA 4.0 International or later
  */
 class courses_get_my_courses extends \core_external\external_api {
-
     /**
      * Has no Parameters
      * @return external_function_parameters
diff --git a/lbplanner/services/plan/accept_invite.php b/lbplanner/services/plan/accept_invite.php
index 2e28c200..fdf69399 100644
--- a/lbplanner/services/plan/accept_invite.php
+++ b/lbplanner/services/plan/accept_invite.php
@@ -75,7 +75,6 @@ public static function accept_invite(int $inviteid) {
         // Deletes the old plan if the user is the owner of it.
         $oldplanid = plan_helper::get_plan_id($USER->id);
         if (plan_helper::get_owner($oldplanid) == $USER->id) {
-
             foreach (plan_helper::get_plan_members($oldplanid) as $member) {
                 if ($member->userid != $USER->id) {
                     self::call_external_function('local_lbplanner_plan_remove_user', [
diff --git a/lbplanner/services/plan/invite_user.php b/lbplanner/services/plan/invite_user.php
index 53714f6e..26d977e4 100644
--- a/lbplanner/services/plan/invite_user.php
+++ b/lbplanner/services/plan/invite_user.php
@@ -75,10 +75,12 @@ public static function invite_user(int $inviteeid): mixed {
             throw new \moodle_exception('Cannot invite user who is already a member');
         }
 
-        if ($DB->record_exists(
+        if (
+            $DB->record_exists(
                 plan_helper::INVITES_TABLE,
                 ['inviteeid' => $inviteeid, 'planid' => $planid, 'status' => PLAN_INVITE_STATE::PENDING]
-            )) {
+            )
+        ) {
             throw new \moodle_exception('User is already invited');
         }
 
diff --git a/lbplanner/services/plan/leave_plan.php b/lbplanner/services/plan/leave_plan.php
index 2a77868f..fa007552 100644
--- a/lbplanner/services/plan/leave_plan.php
+++ b/lbplanner/services/plan/leave_plan.php
@@ -75,13 +75,15 @@ public static function leave_plan() {
                 $allmembers[] = $member;
             }
             if (count($writemembers) > 0) {
-                $newowner = $writemembers[rand( 0, count($writemembers) - 1)]->userid;
+                $newowner = $writemembers[rand(0, count($writemembers) - 1)]->userid;
             } else {
-                $newowner = $allmembers[rand( 0, count($allmembers) - 1)]->userid;
+                $newowner = $allmembers[rand(0, count($allmembers) - 1)]->userid;
             }
             $newowneraccess = $DB->get_record(
                 plan_helper::ACCESS_TABLE,
-                ['planid' => $planid, 'userid' => $newowner], '*', MUST_EXIST
+                ['planid' => $planid, 'userid' => $newowner],
+                '*',
+                MUST_EXIST
             );
             $newowneraccess->accesstype = PLAN_ACCESS_TYPE::OWNER;
             $DB->update_record(plan_helper::ACCESS_TABLE, $newowneraccess);
@@ -91,7 +93,9 @@ public static function leave_plan() {
 
         $oldaccess = $DB->get_record(
             plan_helper::ACCESS_TABLE,
-            ['planid' => $planid, 'userid' => $USER->id], '*', MUST_EXIST
+            ['planid' => $planid, 'userid' => $USER->id],
+            '*',
+            MUST_EXIST
         );
 
         $oldaccess->planid = $newplanid;
diff --git a/lbplanner/services/plan/update_access.php b/lbplanner/services/plan/update_access.php
index 901e5c59..4ac83084 100644
--- a/lbplanner/services/plan/update_access.php
+++ b/lbplanner/services/plan/update_access.php
@@ -37,7 +37,7 @@ public static function update_access_parameters(): external_function_parameters
         return new external_function_parameters([
             'accesstype' => new external_value(
                 PARAM_INT,
-                'New access type '.PLAN_ACCESS_TYPE::format(),
+                'New access type ' . PLAN_ACCESS_TYPE::format(),
                 VALUE_REQUIRED,
                 null,
                 NULL_NOT_ALLOWED
diff --git a/lbplanner/services/slots/add_slot_filter.php b/lbplanner/services/slots/add_slot_filter.php
index 133001b8..d89828f1 100644
--- a/lbplanner/services/slots/add_slot_filter.php
+++ b/lbplanner/services/slots/add_slot_filter.php
@@ -17,7 +17,6 @@
 namespace local_lbplanner_services;
 
 use core_external\{external_api, external_function_parameters, external_single_structure, external_value};
-
 use local_lbplanner\helpers\slot_helper;
 use local_lbplanner\model\slot_filter;
 
diff --git a/lbplanner/services/slots/add_slot_supervisor.php b/lbplanner/services/slots/add_slot_supervisor.php
index 38c056e2..7b147f5c 100644
--- a/lbplanner/services/slots/add_slot_supervisor.php
+++ b/lbplanner/services/slots/add_slot_supervisor.php
@@ -17,7 +17,6 @@
 namespace local_lbplanner_services;
 
 use core_external\{external_api, external_function_parameters, external_value};
-
 use local_lbplanner\helpers\slot_helper;
 use local_lbplanner\model\supervisor;
 
diff --git a/lbplanner/services/slots/book_reservation.php b/lbplanner/services/slots/book_reservation.php
index 9fb08199..82afa4cc 100644
--- a/lbplanner/services/slots/book_reservation.php
+++ b/lbplanner/services/slots/book_reservation.php
@@ -17,14 +17,11 @@
 namespace local_lbplanner_services;
 
 use DateTimeImmutable;
-
+use DateTimeZone;
 use core_user;
 use core_external\{external_api, external_function_parameters, external_single_structure, external_value};
-use DateTimeZone;
 use local_lbplanner\enums\NOTIF_TRIGGER;
-use local_lbplanner\helpers\config_helper;
-use local_lbplanner\helpers\notifications_helper;
-use local_lbplanner\helpers\slot_helper;
+use local_lbplanner\helpers\{config_helper, notifications_helper, slot_helper};
 use local_lbplanner\model\reservation;
 
 /**
diff --git a/lbplanner/services/slots/create_slot.php b/lbplanner/services/slots/create_slot.php
index 5800ff8f..b295c102 100644
--- a/lbplanner/services/slots/create_slot.php
+++ b/lbplanner/services/slots/create_slot.php
@@ -18,7 +18,6 @@
 
 use core_external\{external_api, external_function_parameters, external_single_structure, external_value};
 use core\context\system as context_system;
-
 use local_lbplanner\enums\{CAPABILITY, WEEKDAY};
 use local_lbplanner\helpers\slot_helper;
 use local_lbplanner\model\{slot, supervisor};
@@ -55,7 +54,7 @@ public static function create_slot_parameters(): external_function_parameters {
             ),
             'weekday' => new external_value(
                 PARAM_INT,
-                'The weekday this slot happens on. '.WEEKDAY::format(),
+                'The weekday this slot happens on. ' . WEEKDAY::format(),
                 VALUE_REQUIRED,
                 null,
                 NULL_NOT_ALLOWED
diff --git a/lbplanner/services/slots/delete_slot.php b/lbplanner/services/slots/delete_slot.php
index f9dbee45..f7d16918 100644
--- a/lbplanner/services/slots/delete_slot.php
+++ b/lbplanner/services/slots/delete_slot.php
@@ -17,7 +17,6 @@
 namespace local_lbplanner_services;
 
 use core_external\{external_api, external_function_parameters, external_value};
-
 use local_lbplanner\helpers\slot_helper;
 
 /**
diff --git a/lbplanner/services/slots/get_slot_filters.php b/lbplanner/services/slots/get_slot_filters.php
index 42bb9102..6f95b1f1 100644
--- a/lbplanner/services/slots/get_slot_filters.php
+++ b/lbplanner/services/slots/get_slot_filters.php
@@ -17,7 +17,6 @@
 namespace local_lbplanner_services;
 
 use core_external\{external_api, external_function_parameters, external_multiple_structure, external_value};
-
 use local_lbplanner\helpers\slot_helper;
 use local_lbplanner\model\slot_filter;
 
diff --git a/lbplanner/services/slots/get_slot_reservations.php b/lbplanner/services/slots/get_slot_reservations.php
index 9aad48f5..d18943d9 100644
--- a/lbplanner/services/slots/get_slot_reservations.php
+++ b/lbplanner/services/slots/get_slot_reservations.php
@@ -17,7 +17,6 @@
 namespace local_lbplanner_services;
 
 use core_external\{external_api, external_function_parameters, external_multiple_structure, external_value};
-
 use local_lbplanner\helpers\slot_helper;
 use local_lbplanner\model\reservation;
 
diff --git a/lbplanner/services/slots/get_student_slots.php b/lbplanner/services/slots/get_student_slots.php
index 1d5c55b9..d605df4c 100644
--- a/lbplanner/services/slots/get_student_slots.php
+++ b/lbplanner/services/slots/get_student_slots.php
@@ -17,9 +17,7 @@
 namespace local_lbplanner_services;
 
 use core_external\{external_api, external_function_parameters, external_multiple_structure, external_value};
-
-use local_lbplanner\helpers\slot_helper;
-use local_lbplanner\helpers\user_helper;
+use local_lbplanner\helpers\{slot_helper, user_helper};
 use local_lbplanner\model\slot;
 
 /**
diff --git a/lbplanner/services/slots/remove_slot_supervisor.php b/lbplanner/services/slots/remove_slot_supervisor.php
index 82427f67..e6af6049 100644
--- a/lbplanner/services/slots/remove_slot_supervisor.php
+++ b/lbplanner/services/slots/remove_slot_supervisor.php
@@ -17,7 +17,6 @@
 namespace local_lbplanner_services;
 
 use core_external\{external_api, external_function_parameters, external_value};
-
 use local_lbplanner\helpers\slot_helper;
 
 /**
diff --git a/lbplanner/services/slots/unbook_reservation.php b/lbplanner/services/slots/unbook_reservation.php
index 0184a0d8..7ed222b4 100644
--- a/lbplanner/services/slots/unbook_reservation.php
+++ b/lbplanner/services/slots/unbook_reservation.php
@@ -17,11 +17,8 @@
 namespace local_lbplanner_services;
 
 use DateTimeImmutable;
-
 use core_external\{external_api, external_function_parameters, external_value};
-
-use local_lbplanner\helpers\slot_helper;
-use local_lbplanner\helpers\notifications_helper;
+use local_lbplanner\helpers\{slot_helper, notifications_helper};
 use local_lbplanner\enums\NOTIF_TRIGGER;
 
 /**
@@ -91,7 +88,7 @@ public static function unbook_reservation(int $reservationid, bool $nice): void
                 if ($startpast) {
                     throw new \moodle_exception(
                         'Students can\'t unbook reservations that have already started.'
-                        .' If you want to unbook this reservation regardless, force it.'
+                        . ' If you want to unbook this reservation regardless, force it.'
                     );
                 }
                 notifications_helper::notify_user($reservation->userid, $reservation->id, NOTIF_TRIGGER::UNBOOK_REQUESTED);
diff --git a/lbplanner/services/slots/update_slot.php b/lbplanner/services/slots/update_slot.php
index 212109d5..7150dee9 100644
--- a/lbplanner/services/slots/update_slot.php
+++ b/lbplanner/services/slots/update_slot.php
@@ -17,7 +17,6 @@
 namespace local_lbplanner_services;
 
 use core_external\{external_api, external_function_parameters, external_value};
-
 use local_lbplanner\enums\WEEKDAY;
 use local_lbplanner\helpers\slot_helper;
 
@@ -60,7 +59,7 @@ public static function update_slot_parameters(): external_function_parameters {
             ),
             'weekday' => new external_value(
                 PARAM_INT,
-                'The weekday this slot happens on. '.WEEKDAY::format().' (null to ignore)',
+                'The weekday this slot happens on. ' . WEEKDAY::format() . ' (null to ignore)',
                 VALUE_DEFAULT,
                 null,
                 NULL_ALLOWED
diff --git a/lbplanner/services/user/delete_user.php b/lbplanner/services/user/delete_user.php
index a1c5108d..719e60bb 100644
--- a/lbplanner/services/user/delete_user.php
+++ b/lbplanner/services/user/delete_user.php
@@ -61,7 +61,8 @@ public static function delete_user() {
         if (
             !(count(plan_helper::get_plan_members($planid)) == 1 )
             &&
-            !(plan_helper::get_access_type($planid, $userid) == PLAN_ACCESS_TYPE::OWNER)) {
+            !(plan_helper::get_access_type($planid, $userid) == PLAN_ACCESS_TYPE::OWNER)
+        ) {
             self::call_external_function('local_lbplanner_plan_leave_plan', ['userid' => $userid, 'planid' => $planid]);
         }
         $DB->delete_records(plan_helper::DEADLINES_TABLE, ['planid' => $planid]);
diff --git a/lbplanner/services/user/get_all_users.php b/lbplanner/services/user/get_all_users.php
index 863eecdb..e37ead40 100644
--- a/lbplanner/services/user/get_all_users.php
+++ b/lbplanner/services/user/get_all_users.php
@@ -16,15 +16,14 @@
 
 namespace local_lbplanner_services;
 
-use dml_exception;
 use core_external\{external_api, external_function_parameters, external_multiple_structure, external_value};
 use invalid_parameter_exception;
-use local_lbplanner\enums\CAPABILITY;
 use moodle_exception;
+use dml_exception;
 use core\context\system as context_system;
-
 use local_lbplanner\helpers\user_helper;
 use local_lbplanner\model\user;
+use local_lbplanner\enums\CAPABILITY;
 
 /**
  * Gets all users with one or several LBP capabilities.
diff --git a/lbplanner/services/user/get_user.php b/lbplanner/services/user/get_user.php
index d7cc827b..129f13f9 100644
--- a/lbplanner/services/user/get_user.php
+++ b/lbplanner/services/user/get_user.php
@@ -18,9 +18,8 @@
 
 use coding_exception;
 use dml_exception;
-use core_external\{external_function_parameters, external_single_structure};
 use moodle_exception;
-
+use core_external\{external_function_parameters, external_single_structure};
 use local_lbplanner\helpers\user_helper;
 use local_lbplanner\model\user;
 
diff --git a/lbplanner/services/user/update_user.php b/lbplanner/services/user/update_user.php
index 89eb5750..9a1a3a81 100644
--- a/lbplanner/services/user/update_user.php
+++ b/lbplanner/services/user/update_user.php
@@ -16,11 +16,10 @@
 
 namespace local_lbplanner_services;
 
-use dml_exception;
 use core_external\{external_api, external_function_parameters, external_single_structure, external_value};
 use invalid_parameter_exception;
 use moodle_exception;
-
+use dml_exception;
 use local_lbplanner\helpers\user_helper;
 use local_lbplanner\model\user;
 use local_lbplanner\enums\KANBANCOL_TYPE_ORNONE;
@@ -40,42 +39,54 @@ class user_update_user extends external_api {
      */
     public static function update_user_parameters(): external_function_parameters {
         return new external_function_parameters([
-            'theme' => new external_value(PARAM_TEXT, 'The theme the user has selected', VALUE_DEFAULT, null),
+            'theme' => new external_value(
+                PARAM_TEXT,
+                'The theme the user has selected',
+                VALUE_DEFAULT,
+                null
+            ),
             'colorblindness' => new external_value(
                 PARAM_TEXT,
                 'The colorblindness the user has selected',
                 VALUE_DEFAULT,
-                null),
+                null
+            ),
             'displaytaskcount' => new external_value(
                 PARAM_BOOL,
                 'Whether the user has the taskcount enabled',
                 VALUE_DEFAULT,
-                null),
+                null
+            ),
             'ekenabled' => new external_value(
                 PARAM_BOOL,
                 'Whether the user wants to see EK modules',
                 VALUE_DEFAULT,
-                null),
+                null
+            ),
             'showcolumncolors' => new external_value(
                 PARAM_BOOL,
                 'Whether column colors should show in kanban board',
                 VALUE_DEFAULT,
-                null),
+                null
+            ),
             'automovecompletedtasks' => new external_value(
                 PARAM_TEXT,
-                'The kanban column to move a task to if completed '.KANBANCOL_TYPE_ORNONE::format(),
+                'The kanban column to move a task to if completed ' . KANBANCOL_TYPE_ORNONE::format(),
                 VALUE_DEFAULT,
-                null),
+                null
+            ),
             'automovesubmittedtasks' => new external_value(
                 PARAM_TEXT,
-                'The kanban column to move a task to if submitted '.KANBANCOL_TYPE_ORNONE::format(),
+                'The kanban column to move a task to if submitted ' . KANBANCOL_TYPE_ORNONE::format(),
                 VALUE_DEFAULT,
-                null),
+                null
+            ),
             'automoveoverduetasks' => new external_value(
                 PARAM_TEXT,
-                'The kanban column to move a task to if overdue '.KANBANCOL_TYPE_ORNONE::format(),
+                'The kanban column to move a task to if overdue ' . KANBANCOL_TYPE_ORNONE::format(),
                 VALUE_DEFAULT,
-                null),
+                null
+            ),
         ]);
     }
 
diff --git a/lbplanner/settings.php b/lbplanner/settings.php
index 65a84832..543faf02 100644
--- a/lbplanner/settings.php
+++ b/lbplanner/settings.php
@@ -31,7 +31,7 @@
     $ADMIN->add('localplugins', $settings);
 
     $futuresightsett = new admin_setting_configselect(
-        'local_lbplanner/'.SETTINGS::SLOT_FUTURESIGHT,
+        'local_lbplanner/' . SETTINGS::SLOT_FUTURESIGHT,
         'Advance reservation limit',
         'Maximum number of days in advance students can reserve slots (0 = same day only).',
         3,
@@ -49,7 +49,7 @@
     $settings->add($futuresightsett);
 
     $outdaterangesett = new admin_setting_configduration(
-        'local_lbplanner/'.SETTINGS::COURSE_OUTDATERANGE,
+        'local_lbplanner/' . SETTINGS::COURSE_OUTDATERANGE,
         'Mark courses as outdated after',
         'The maximum duration a course remains visible in EduPlanner after it ends.',
         31536000, // 1 non-leap year.