diff --git a/classes/task/get_meeting_reports.php b/classes/task/get_meeting_reports.php
index c65328cd..df5a8093 100644
--- a/classes/task/get_meeting_reports.php
+++ b/classes/task/get_meeting_reports.php
@@ -461,7 +461,7 @@ public function debugmsg($msg) {
      * @return boolean
      */
     public function process_meeting_reports($meeting) {
-        global $DB, $CFG;
+        global $DB;
 
         $this->debugmsg(sprintf('Processing meeting %s|%s that occurred at %s',
                 $meeting->meeting_id, $meeting->uuid, $meeting->start_time));
@@ -532,7 +532,7 @@ public function process_meeting_reports($meeting) {
                     'detailsid' => $participant['detailsid'],
                     'zoomuserid' => $participant['zoomuserid'],
                     'join_time' => $participant['join_time'],
-                    'leave_time' => $participant['leave_time']
+                    'leave_time' => $participant['leave_time'],
                 ];
 
                 // Check if the record already exists.
@@ -623,7 +623,7 @@ public function grading_participant_upon_duration($zoomrecord, $detailsid) {
 
             // Check if there is old duration stored for this user.
             if (!empty($durations[$userid])) {
-                $old = new \stdClass;
+                $old = new \stdClass();
                 $old->duration = $durations[$userid];
                 $old->join_time = $join[$userid];
                 $old->leave_time = $leave[$userid];
@@ -700,7 +700,6 @@ public function grading_participant_upon_duration($zoomrecord, $detailsid) {
                 } else {
                     $notenrolled[$userid] = fullname(\core_user::get_user($userid));
                 }
-
             } else {
                 // This means that this user was not identified.
                 // Provide information about participants that need to be graded manually.
@@ -800,7 +799,7 @@ public function notify_teachers($data) {
         $needgradenumber = count($data['needgrade']);
         // List of users need grading.
         $needstring = get_string('grading_needgrade', 'mod_zoom');
-        $needgrade = (!empty($data['needgrade'])) ? $needstring.implode('<br>', $data['needgrade'])."\n" : '';
+        $needgrade = (!empty($data['needgrade'])) ? $needstring . implode('<br>', $data['needgrade']) . "\n" : '';
 
         $zoomid = $data['zoomid'];
         $itemid = $data['itemid'];
@@ -974,7 +973,6 @@ public function get_users_clicked_join($zoomrecord) {
         foreach ($events as $event) {
             if ($event->other['meetingid'] == $zoomrecord->meeting_id &&
                 !in_array($event->userid, $userids)) {
-
                 $userids[] = $event->userid;
             }
         }
diff --git a/tests/get_meeting_reports_test.php b/tests/get_meeting_reports_test.php
index 9c6389dd..89cc1636 100644
--- a/tests/get_meeting_reports_test.php
+++ b/tests/get_meeting_reports_test.php
@@ -438,7 +438,7 @@ public function test_grading_method() {
         $context = \context_course::instance($course->id);
         $graders = get_users_by_capability($context, 'moodle/grade:edit');
         $this->assertEquals(1, count($graders));
-        $firstkey = array_key_first($graders);
+        $firstkey = key($graders);
         $this->assertEquals($graders[$firstkey]->id, $teacher->id);
         // Now fake the meeting details.
         $meeting = new stdClass();
@@ -684,7 +684,7 @@ public function test_grading_method() {
         // The user need grading.
         $needgradestr = get_string('grading_needgrade', 'mod_zoom');
         $needgrade[] = '(Name: Farouk, grade: 55)';
-        $needgrade = $needgradestr.implode('<br>', $needgrade)."\n";
+        $needgrade = $needgradestr . implode('<br>', $needgrade) . "\n";
 
         $a = (object)[
             'name' => $zoomrecord->name,