diff --git a/backup/util/xml/output/xml_output.class.php b/backup/util/xml/output/xml_output.class.php
index a1d816db4d2..159fbdb10b9 100644
--- a/backup/util/xml/output/xml_output.class.php
+++ b/backup/util/xml/output/xml_output.class.php
@@ -51,7 +51,7 @@ abstract class xml_output {
 
     public function __construct($usebuffer = true) {
         $this->inittime   = microtime(true);
-        $this->finishtime = $this->inittime;;
+        $this->finishtime = $this->inittime;
         $this->sentbytes  = 0;
 
         $this->usebuffer         = $usebuffer;
diff --git a/course/lib.php b/course/lib.php
index a58b86ad3c9..52302409346 100644
--- a/course/lib.php
+++ b/course/lib.php
@@ -527,7 +527,7 @@ function print_mnet_log($hostid, $course, $user=0, $date=0, $order="l.time ASC",
         echo "</td>\n";
         echo "<td class=\"r$row c4\">\n";
         echo $log->action .': '.$log->module;
-        echo "</td>\n";;
+        echo "</td>\n";
         echo "<td class=\"r$row c5\">{$log->info}</td>\n";
         echo "</tr>\n";
     }
diff --git a/course/reset.php b/course/reset.php
index 09a440bd0cf..0517f392bd8 100644
--- a/course/reset.php
+++ b/course/reset.php
@@ -72,7 +72,7 @@ if ($mform->is_cancelled()) {
         $data->reset_start_date_old = $course->startdate;
         $status = reset_course_userdata($data);
 
-        $data = array();;
+        $data = array();
         foreach ($status as $item) {
             $line = array();
             $line[] = $item['component'];
diff --git a/enrol/paypal/ipn.php b/enrol/paypal/ipn.php
index 77ed062f607..2a25472cdfc 100644
--- a/enrol/paypal/ipn.php
+++ b/enrol/paypal/ipn.php
@@ -185,7 +185,7 @@ if (strlen($result) > 0) {
         }
 
         if (!$course = $DB->get_record('course', array('id'=>$data->courseid))) { // Check that course exists
-            message_paypal_error_to_admin("Course $data->courseid doesn't exist", $data);;
+            message_paypal_error_to_admin("Course $data->courseid doesn't exist", $data);
             die;
         }
 
diff --git a/enrol/users.php b/enrol/users.php
index 683de562427..d33174a2e05 100644
--- a/enrol/users.php
+++ b/enrol/users.php
@@ -203,7 +203,7 @@ foreach ($users as $userid=>&$user) {
     $user['picture'] = $OUTPUT->render($user['picture']);
     $user['role'] = $renderer->user_roles_and_actions($userid, $user['roles'], $manager->get_assignable_roles(), $canassign, $PAGE->url);
     $user['group'] = $renderer->user_groups_and_actions($userid, $user['groups'], $manager->get_all_groups(), has_capability('moodle/course:managegroups', $manager->get_context()), $PAGE->url);
-    $user['enrol'] = $renderer->user_enrolments_and_actions($user['enrolments']);;
+    $user['enrol'] = $renderer->user_enrolments_and_actions($user['enrolments']);
 }
 $table->set_total_users($manager->get_total_users());
 $table->set_users($users);
diff --git a/grade/edit/tree/lib.php b/grade/edit/tree/lib.php
index 62c7a4f0edb..6a71f1a8e17 100644
--- a/grade/edit/tree/lib.php
+++ b/grade/edit/tree/lib.php
@@ -309,7 +309,7 @@ class grade_edit_tree {
             $endcell->colspan = (19 - $level);
             $endcell->attributes['class'] = 'colspan ' . $levelclass;
 
-            $returnrows[] = new html_table_row(array($endcell));;
+            $returnrows[] = new html_table_row(array($endcell));
 
         } else { // Dealing with a grade item
 
diff --git a/lib/ddl/tests/ddl_test.php b/lib/ddl/tests/ddl_test.php
index 3484b043b5d..56eac3320ba 100644
--- a/lib/ddl/tests/ddl_test.php
+++ b/lib/ddl/tests/ddl_test.php
@@ -1213,7 +1213,7 @@ class ddl_testcase extends database_driver_testcase {
         try {
             $result = $DB->insert_record('test_table_cust0', $record, false);
         } catch (dml_exception $e) {
-            $result = false;;
+            $result = false;
         }
         $this->resetDebugging();
         $this->assertFalse($result);
diff --git a/lib/dtl/xml_database_importer.php b/lib/dtl/xml_database_importer.php
index da522dd13af..98fc18ca38c 100644
--- a/lib/dtl/xml_database_importer.php
+++ b/lib/dtl/xml_database_importer.php
@@ -120,7 +120,7 @@ abstract class xml_database_importer extends database_importer {
 
             case 'record' :
                 $this->import_table_data($this->current_table, $this->current_row);
-                $this->current_row = null;;
+                $this->current_row = null;
                 break;
 
             case 'field' :
diff --git a/lib/enrollib.php b/lib/enrollib.php
index 76a7bf5b7fa..6f1d7ae0789 100644
--- a/lib/enrollib.php
+++ b/lib/enrollib.php
@@ -1545,7 +1545,7 @@ abstract class enrol_plugin {
             return NULL;
         }
 
-        return new moodle_url("/enrol/$name/unenrolself.php", array('enrolid'=>$instance->id));;
+        return new moodle_url("/enrol/$name/unenrolself.php", array('enrolid'=>$instance->id));
     }
 
     /**
diff --git a/lib/eventslib.php b/lib/eventslib.php
index b51195a1f44..4717fb3f6ba 100644
--- a/lib/eventslib.php
+++ b/lib/eventslib.php
@@ -515,7 +515,7 @@ function events_trigger($eventname, $eventdata) {
                     events_get_handlers('reset');
 
                 } else {
-                    $errormessage = 'Unknown error';;
+                    $errormessage = 'Unknown error';
                     $result = events_dispatch($handler, $eventdata, $errormessage);
                     if ($result === true) {
                         // everything is fine - event dispatched
@@ -615,4 +615,4 @@ function events_pending_count($eventname) {
              WHERE h.eventname = ?";
 
     return $DB->count_records_sql($sql, array($eventname));
-}
\ No newline at end of file
+}
diff --git a/lib/filelib.php b/lib/filelib.php
index 7782421c013..eaa3590e702 100644
--- a/lib/filelib.php
+++ b/lib/filelib.php
@@ -1331,7 +1331,7 @@ function download_file_content($url, $headers=null, $postdata=null, $fullrespons
             $response->error         = 'Unknown cURL error';
 
         } else {
-            $response = new stdClass();;
+            $response = new stdClass();
             $response->status        = (string)$info['http_code'];
             $response->headers       = $received->headers;
             $response->response_code = $received->headers[0];
diff --git a/lib/filestorage/file_storage.php b/lib/filestorage/file_storage.php
index 043e350e82c..9c444304d9c 100644
--- a/lib/filestorage/file_storage.php
+++ b/lib/filestorage/file_storage.php
@@ -1674,7 +1674,7 @@ class file_storage {
         $reference['component'] = is_null($params['component']) ? null : clean_param($params['component'], PARAM_COMPONENT);
         $reference['itemid']    = is_null($params['itemid'])    ? null : clean_param($params['itemid'],    PARAM_INT);
         $reference['filearea']  = is_null($params['filearea'])  ? null : clean_param($params['filearea'],  PARAM_AREA);
-        $reference['filepath']  = is_null($params['filepath'])  ? null : clean_param($params['filepath'],  PARAM_PATH);;
+        $reference['filepath']  = is_null($params['filepath'])  ? null : clean_param($params['filepath'],  PARAM_PATH);
         $reference['filename']  = is_null($params['filename'])  ? null : clean_param($params['filename'],  PARAM_FILE);
         return base64_encode(serialize($reference));
     }
diff --git a/lib/moodlelib.php b/lib/moodlelib.php
index 534861b5763..d27391a6509 100644
--- a/lib/moodlelib.php
+++ b/lib/moodlelib.php
@@ -5881,7 +5881,7 @@ function get_file_browser() {
 function get_file_packer($mimetype='application/zip') {
     global $CFG;
 
-    static $fp = array();;
+    static $fp = array();
 
     if (isset($fp[$mimetype])) {
         return $fp[$mimetype];
diff --git a/lib/odslib.class.php b/lib/odslib.class.php
index 8192a37f426..f22eb72cddd 100644
--- a/lib/odslib.class.php
+++ b/lib/odslib.class.php
@@ -65,7 +65,7 @@ class MoodleODSWorkbook {
      */
     function &add_format($properties = array()) {
         $format = new MoodleODSFormat($properties);
-        return $format;;
+        return $format;
     }
 
     /* Close the Moodle Workbook
diff --git a/lib/outputrenderers.php b/lib/outputrenderers.php
index 4e097b95730..8e57f287bd6 100644
--- a/lib/outputrenderers.php
+++ b/lib/outputrenderers.php
@@ -2105,7 +2105,7 @@ class core_renderer extends renderer_base {
         $attributes = array('src'=>$src, 'alt'=>$alt, 'title'=>$alt, 'class'=>$class, 'width'=>$size, 'height'=>$size);
 
         // get the image html output fisrt
-        $output = html_writer::empty_tag('img', $attributes);;
+        $output = html_writer::empty_tag('img', $attributes);
 
         // then wrap it in link if needed
         if (!$userpicture->link) {
diff --git a/lib/portfolio/exporter.php b/lib/portfolio/exporter.php
index 3225ddf6af3..cc73d37eb89 100644
--- a/lib/portfolio/exporter.php
+++ b/lib/portfolio/exporter.php
@@ -335,7 +335,7 @@ class portfolio_exporter {
                 $mform->display();
                 echo $OUTPUT->box_end();
                 echo $OUTPUT->footer();
-                return false;;
+                return false;
             }
         } else {
             $this->noexportconfig = true;
diff --git a/lib/statslib.php b/lib/statslib.php
index 51d7b7ce7b2..3582c018a93 100644
--- a/lib/statslib.php
+++ b/lib/statslib.php
@@ -406,7 +406,7 @@ function stats_cron_daily($maxdays=1) {
 
                     SELECT 'enrolments', $nextmidnight, ".SITEID.", $defaultfproleid,
                            $totalactiveusers AS stat1, $dailyactiveusers AS stat2" .
-                    $DB->sql_null_from_clause();;
+                    $DB->sql_null_from_clause();
 
             if ($logspresent && !stats_run_query($sql)) {
                 $failed = true;
diff --git a/lib/tests/conditionlib_test.php b/lib/tests/conditionlib_test.php
index 75fed3cf3d2..b3ae7f5d402 100644
--- a/lib/tests/conditionlib_test.php
+++ b/lib/tests/conditionlib_test.php
@@ -41,7 +41,7 @@ class conditionlib_testcase extends advanced_testcase {
 
         $CFG->enableavailability = 1;
         $CFG->enablecompletion = 1;
-        $user = $this->getDataGenerator()->create_user();;
+        $user = $this->getDataGenerator()->create_user();
         $this->setUser($user);
     }
 
diff --git a/lib/tests/navigationlib_test.php b/lib/tests/navigationlib_test.php
index b4c35eb8cdf..5dea4da1d04 100644
--- a/lib/tests/navigationlib_test.php
+++ b/lib/tests/navigationlib_test.php
@@ -68,7 +68,7 @@ class navigation_node_testcase extends basic_testcase {
         $demo5->add('activity1', null, navigation_node::TYPE_ACTIVITY, null, 'activity1')->make_active();
         $hiddendemo1 = $this->node->add('hiddendemo1', $this->inactiveurl, navigation_node::TYPE_CATEGORY, null, 'hiddendemo1', new pix_icon('i/course', ''));
         $hiddendemo1->hidden = true;
-        $hiddendemo1->add('hiddendemo2', $this->inactiveurl, navigation_node::TYPE_COURSE, null, 'hiddendemo2', new pix_icon('i/course', ''))->helpbutton = 'Here is a help button';;
+        $hiddendemo1->add('hiddendemo2', $this->inactiveurl, navigation_node::TYPE_COURSE, null, 'hiddendemo2', new pix_icon('i/course', ''))->helpbutton = 'Here is a help button';
         $hiddendemo1->add('hiddendemo3', $this->inactiveurl, navigation_node::TYPE_COURSE,null, 'hiddendemo3', new pix_icon('i/course', ''))->display = false;
     }
 
diff --git a/lib/upgradelib.php b/lib/upgradelib.php
index 8adb97a60af..c077858f298 100644
--- a/lib/upgradelib.php
+++ b/lib/upgradelib.php
@@ -786,7 +786,7 @@ function upgrade_plugins_blocks($startcallback, $endcallback, $verbose) {
                 require_once($fullblock.'/db/install.php');
                 // Set installation running flag, we need to recover after exception or error
                 set_config('installrunning', 1, 'block_'.$blockname);
-                $post_install_function = 'xmldb_block_'.$blockname.'_install';;
+                $post_install_function = 'xmldb_block_'.$blockname.'_install';
                 $post_install_function();
                 unset_config('installrunning', 'block_'.$blockname);
             }
diff --git a/mnet/lib.php b/mnet/lib.php
index 170522124ac..aa233c57f94 100644
--- a/mnet/lib.php
+++ b/mnet/lib.php
@@ -310,7 +310,7 @@ function mnet_encrypt_message($message, $remote_certificate) {
  * @return  string              The signature over that text
  */
 function mnet_get_keypair() {
-    global $CFG, $DB;;
+    global $CFG, $DB;
     static $keypair = null;
     if (!is_null($keypair)) return $keypair;
     if ($result = get_config('mnet', 'openssl')) {
diff --git a/mod/feedback/item/info/lib.php b/mod/feedback/item/info/lib.php
index 46a9e4c3d16..a51c8f881aa 100644
--- a/mod/feedback/item/info/lib.php
+++ b/mod/feedback/item/info/lib.php
@@ -106,7 +106,7 @@ class feedback_item_info extends feedback_item_base {
     public function get_analysed($item, $groupid = false, $courseid = false) {
 
         $presentation = $item->presentation;
-        $analysed_val = new stdClass();;
+        $analysed_val = new stdClass();
         $analysed_val->data = null;
         $analysed_val->name = $item->name;
         $values = feedback_get_group_values($item, $groupid, $courseid);
diff --git a/mod/forum/index.php b/mod/forum/index.php
index 8c334ad3a51..fc9903de13e 100644
--- a/mod/forum/index.php
+++ b/mod/forum/index.php
@@ -228,7 +228,7 @@ if ($generalforums) {
         }
 
         $forum->intro = shorten_text(format_module_intro('forum', $forum, $cm->id), $CFG->forum_shortpost);
-        $forumname = format_string($forum->name, true);;
+        $forumname = format_string($forum->name, true);
 
         if ($cm->visible) {
             $style = '';
@@ -366,7 +366,7 @@ if ($course->id != SITEID) {    // Only real courses have learning forums
                 $printsection = '';
             }
 
-            $forumname = format_string($forum->name,true);;
+            $forumname = format_string($forum->name,true);
 
             if ($cm->visible) {
                 $style = '';
diff --git a/mod/forum/lib.php b/mod/forum/lib.php
index fdb9521eed8..68e6ad8affd 100644
--- a/mod/forum/lib.php
+++ b/mod/forum/lib.php
@@ -7192,7 +7192,7 @@ function forum_reset_userdata($data) {
     if( $removeposts || !empty($data->reset_forum_ratings) ) {
         $forumssql      = "$allforumssql $typesql";
         $forums = $forums = $DB->get_records_sql($forumssql, $params);
-        $rm = new rating_manager();;
+        $rm = new rating_manager();
         $ratingdeloptions = new stdClass;
         $ratingdeloptions->component = 'mod_forum';
         $ratingdeloptions->ratingarea = 'post';
diff --git a/mod/lesson/continue.php b/mod/lesson/continue.php
index 9677e220f80..79f3499aab3 100644
--- a/mod/lesson/continue.php
+++ b/mod/lesson/continue.php
@@ -30,7 +30,7 @@ require_once($CFG->dirroot.'/mod/lesson/locallib.php');
 
 $id = required_param('id', PARAM_INT);
 
-$cm = get_coursemodule_from_id('lesson', $id, 0, false, MUST_EXIST);;
+$cm = get_coursemodule_from_id('lesson', $id, 0, false, MUST_EXIST);
 $course = $DB->get_record('course', array('id' => $cm->course), '*', MUST_EXIST);
 $lesson = new lesson($DB->get_record('lesson', array('id' => $cm->instance), '*', MUST_EXIST));
 
@@ -214,4 +214,4 @@ if ($lesson->review && !$result->correctanswer && !$result->noanswer && !$result
     echo $OUTPUT->single_button($url, get_string('continue', 'lesson'));
 }
 
-echo $lessonoutput->footer();
\ No newline at end of file
+echo $lessonoutput->footer();
diff --git a/mod/lesson/edit.php b/mod/lesson/edit.php
index e7c8f0af984..aeeb2014297 100644
--- a/mod/lesson/edit.php
+++ b/mod/lesson/edit.php
@@ -29,7 +29,7 @@ require_once($CFG->dirroot.'/mod/lesson/locallib.php');
 
 $id = required_param('id', PARAM_INT);
 
-$cm = get_coursemodule_from_id('lesson', $id, 0, false, MUST_EXIST);;
+$cm = get_coursemodule_from_id('lesson', $id, 0, false, MUST_EXIST);
 $course = $DB->get_record('course', array('id' => $cm->course), '*', MUST_EXIST);
 $lesson = new lesson($DB->get_record('lesson', array('id' => $cm->instance), '*', MUST_EXIST));
 
diff --git a/mod/lesson/editpage.php b/mod/lesson/editpage.php
index 827f1a44a0c..140de2e3b72 100644
--- a/mod/lesson/editpage.php
+++ b/mod/lesson/editpage.php
@@ -34,7 +34,7 @@ $id     = required_param('id', PARAM_INT);         // Course Module ID
 $qtype  = optional_param('qtype', 0, PARAM_INT);
 $edit   = optional_param('edit', false, PARAM_BOOL);
 
-$cm = get_coursemodule_from_id('lesson', $id, 0, false, MUST_EXIST);;
+$cm = get_coursemodule_from_id('lesson', $id, 0, false, MUST_EXIST);
 $course = $DB->get_record('course', array('id' => $cm->course), '*', MUST_EXIST);
 $lesson = new lesson($DB->get_record('lesson', array('id' => $cm->instance), '*', MUST_EXIST));
 
diff --git a/mod/lesson/essay.php b/mod/lesson/essay.php
index 4767fc9dbbc..e0dd5336b0a 100644
--- a/mod/lesson/essay.php
+++ b/mod/lesson/essay.php
@@ -32,7 +32,7 @@ require_once($CFG->libdir.'/eventslib.php');
 $id   = required_param('id', PARAM_INT);             // Course Module ID
 $mode = optional_param('mode', 'display', PARAM_ALPHA);
 
-$cm = get_coursemodule_from_id('lesson', $id, 0, false, MUST_EXIST);;
+$cm = get_coursemodule_from_id('lesson', $id, 0, false, MUST_EXIST);
 $course = $DB->get_record('course', array('id' => $cm->course), '*', MUST_EXIST);
 $lesson = new lesson($DB->get_record('lesson', array('id' => $cm->instance), '*', MUST_EXIST));
 
diff --git a/mod/lesson/grade.php b/mod/lesson/grade.php
index 7761c5ac02b..8a98406b297 100644
--- a/mod/lesson/grade.php
+++ b/mod/lesson/grade.php
@@ -31,7 +31,7 @@ require_once($CFG->dirroot.'/mod/lesson/locallib.php');
 
 $id = required_param('id', PARAM_INT);
 
-$cm = get_coursemodule_from_id('lesson', $id, 0, false, MUST_EXIST);;
+$cm = get_coursemodule_from_id('lesson', $id, 0, false, MUST_EXIST);
 $course = $DB->get_record('course', array('id' => $cm->course), '*', MUST_EXIST);
 $lesson = new lesson($DB->get_record('lesson', array('id' => $cm->instance), '*', MUST_EXIST));
 
diff --git a/mod/lesson/highscores.php b/mod/lesson/highscores.php
index aefb7dc0511..c75dbbff47f 100644
--- a/mod/lesson/highscores.php
+++ b/mod/lesson/highscores.php
@@ -32,7 +32,7 @@ $id      = required_param('id', PARAM_INT);             // Course Module ID
 $mode    = optional_param('mode', '', PARAM_ALPHA);
 $link = optional_param('link', 0, PARAM_INT);
 
-$cm = get_coursemodule_from_id('lesson', $id, 0, false, MUST_EXIST);;
+$cm = get_coursemodule_from_id('lesson', $id, 0, false, MUST_EXIST);
 $course = $DB->get_record('course', array('id' => $cm->course), '*', MUST_EXIST);
 $lesson = new lesson($DB->get_record('lesson', array('id' => $cm->instance), '*', MUST_EXIST));
 
@@ -224,4 +224,4 @@ switch ($mode) {
         break;
 }
 
-echo $lessonoutput->footer();
\ No newline at end of file
+echo $lessonoutput->footer();
diff --git a/mod/lesson/import.php b/mod/lesson/import.php
index 1a9e93c673f..4f3814c72d3 100644
--- a/mod/lesson/import.php
+++ b/mod/lesson/import.php
@@ -35,7 +35,7 @@ $pageid = optional_param('pageid', '', PARAM_INT); // Page ID
 
 $PAGE->set_url('/mod/lesson/import.php', array('id'=>$id, 'pageid'=>$pageid));
 
-$cm = get_coursemodule_from_id('lesson', $id, 0, false, MUST_EXIST);;
+$cm = get_coursemodule_from_id('lesson', $id, 0, false, MUST_EXIST);
 $course = $DB->get_record('course', array('id' => $cm->course), '*', MUST_EXIST);
 $lesson = new lesson($DB->get_record('lesson', array('id' => $cm->instance), '*', MUST_EXIST));
 
@@ -106,4 +106,4 @@ if ($data = $mform->get_data()) {
     $mform->display();
 }
 
-echo $OUTPUT->footer();
\ No newline at end of file
+echo $OUTPUT->footer();
diff --git a/mod/lesson/lesson.php b/mod/lesson/lesson.php
index e76c91047ca..75ee4bb288c 100644
--- a/mod/lesson/lesson.php
+++ b/mod/lesson/lesson.php
@@ -36,7 +36,7 @@ $id     = required_param('id', PARAM_INT);         // Course Module ID
 $action = required_param('action', PARAM_ALPHA);   // Action
 $pageid = required_param('pageid', PARAM_INT);
 
-$cm = get_coursemodule_from_id('lesson', $id, 0, false, MUST_EXIST);;
+$cm = get_coursemodule_from_id('lesson', $id, 0, false, MUST_EXIST);
 $course = $DB->get_record('course', array('id' => $cm->course), '*', MUST_EXIST);
 $lesson = new lesson($DB->get_record('lesson', array('id' => $cm->instance), '*', MUST_EXIST));
 
@@ -166,4 +166,4 @@ switch ($action) {
         break;
 }
 
-echo $lessonoutput->footer();
\ No newline at end of file
+echo $lessonoutput->footer();
diff --git a/mod/lesson/locallib.php b/mod/lesson/locallib.php
index 9c9c07acf6a..f4addcca314 100644
--- a/mod/lesson/locallib.php
+++ b/mod/lesson/locallib.php
@@ -948,7 +948,7 @@ class lesson extends lesson_base {
         require_once($CFG->libdir.'/gradelib.php');
         require_once($CFG->dirroot.'/calendar/lib.php');
 
-        $DB->delete_records("lesson", array("id"=>$this->properties->id));;
+        $DB->delete_records("lesson", array("id"=>$this->properties->id));
         $DB->delete_records("lesson_pages", array("lessonid"=>$this->properties->id));
         $DB->delete_records("lesson_answers", array("lessonid"=>$this->properties->id));
         $DB->delete_records("lesson_attempts", array("lessonid"=>$this->properties->id));
diff --git a/mod/lesson/mediafile.php b/mod/lesson/mediafile.php
index ecf94896c7f..7ad10af06e7 100644
--- a/mod/lesson/mediafile.php
+++ b/mod/lesson/mediafile.php
@@ -33,7 +33,7 @@ require_once($CFG->dirroot.'/mod/lesson/locallib.php');
 $id = required_param('id', PARAM_INT);    // Course Module ID
 $printclose = optional_param('printclose', 0, PARAM_INT);
 
-$cm = get_coursemodule_from_id('lesson', $id, 0, false, MUST_EXIST);;
+$cm = get_coursemodule_from_id('lesson', $id, 0, false, MUST_EXIST);
 $course = $DB->get_record('course', array('id' => $cm->course), '*', MUST_EXIST);
 $lesson = new lesson($DB->get_record('lesson', array('id' => $cm->instance), '*', MUST_EXIST));
 
@@ -109,4 +109,4 @@ if ($lesson->mediaclose) {
    echo '</div>';
 }
 
-echo $lessonoutput->footer();
\ No newline at end of file
+echo $lessonoutput->footer();
diff --git a/mod/lesson/pagetypes/endofbranch.php b/mod/lesson/pagetypes/endofbranch.php
index 38c07a2694a..315f51dab21 100644
--- a/mod/lesson/pagetypes/endofbranch.php
+++ b/mod/lesson/pagetypes/endofbranch.php
@@ -122,7 +122,7 @@ class lesson_page_type_endofbranch extends lesson_page {
             $answer = new stdClass;
         }
 
-        $answer->timemodified = time();;
+        $answer->timemodified = time();
         if (isset($properties->jumpto[0])) {
             $answer->jumpto = $properties->jumpto[0];
         }
@@ -230,4 +230,4 @@ class lesson_add_page_form_endofbranch extends lesson_add_page_form_base {
 
         redirect($CFG->wwwroot."/mod/lesson/edit.php?id=".$PAGE->cm->id);
     }
-}
\ No newline at end of file
+}
diff --git a/mod/lesson/pagetypes/endofcluster.php b/mod/lesson/pagetypes/endofcluster.php
index edca1fde088..f4cdb8b6e62 100644
--- a/mod/lesson/pagetypes/endofcluster.php
+++ b/mod/lesson/pagetypes/endofcluster.php
@@ -91,7 +91,7 @@ class lesson_page_type_endofcluster extends lesson_page {
             $answer = new stdClass;
         }
 
-        $answer->timemodified = time();;
+        $answer->timemodified = time();
         if (isset($properties->jumpto[0])) {
             $answer->jumpto = $properties->jumpto[0];
         }
@@ -198,4 +198,4 @@ class lesson_add_page_form_endofcluster extends lesson_add_page_form_base {
         $lesson->add_message(get_string('addedendofcluster', 'lesson'), 'notifysuccess');
         redirect($CFG->wwwroot.'/mod/lesson/edit.php?id='.$PAGE->cm->id);
     }
-}
\ No newline at end of file
+}
diff --git a/mod/lesson/view.php b/mod/lesson/view.php
index c4dc6346cf2..0631dde7b51 100644
--- a/mod/lesson/view.php
+++ b/mod/lesson/view.php
@@ -35,7 +35,7 @@ $edit    = optional_param('edit', -1, PARAM_BOOL);
 $userpassword = optional_param('userpassword','',PARAM_RAW);
 $backtocourse = optional_param('backtocourse', false, PARAM_RAW);
 
-$cm = get_coursemodule_from_id('lesson', $id, 0, false, MUST_EXIST);;
+$cm = get_coursemodule_from_id('lesson', $id, 0, false, MUST_EXIST);
 $course = $DB->get_record('course', array('id' => $cm->course), '*', MUST_EXIST);
 $lesson = new lesson($DB->get_record('lesson', array('id' => $cm->instance), '*', MUST_EXIST));
 
@@ -475,7 +475,7 @@ if ($pageid != LESSON_EOL) {
         } else {
             if ($lesson->timed) {
                 if ($outoftime == 'normal') {
-                    $grade = new stdClass();;
+                    $grade = new stdClass();
                     $grade->lessonid = $lesson->id;
                     $grade->userid = $USER->id;
                     $grade->grade = 0;
diff --git a/mod/quiz/editlib.php b/mod/quiz/editlib.php
index 54d9b8a21c1..c7e814bea52 100644
--- a/mod/quiz/editlib.php
+++ b/mod/quiz/editlib.php
@@ -1317,7 +1317,7 @@ function quiz_print_status_bar($quiz) {
     if (empty($dates)) {
         $dates[] = get_string('alwaysavailable', 'quiz');
     }
-    $tooltip = implode(', ', $dates);;
+    $tooltip = implode(', ', $dates);
 
     // Brief summary on the page.
     if ($timenow < $quiz->timeopen) {
diff --git a/mod/scorm/datamodels/scormlib.php b/mod/scorm/datamodels/scormlib.php
index 2e4390fecab..6fa4f5d5775 100644
--- a/mod/scorm/datamodels/scormlib.php
+++ b/mod/scorm/datamodels/scormlib.php
@@ -367,7 +367,7 @@ function scorm_get_manifest($blocks, $scoes) {
                             }
                             if ($sequencing['name']=='IMSSS:ROLLUPRULES') {
                                 if (isset($sequencing['attrs']['ROLLUPOBJECTIVESATISFIED'])) {
-                                    $scoes->elements[$manifest][$parent->organization][$parent->identifier]->rollupobjectivesatisfied = $sequencing['attrs']['ROLLUPOBJECTIVESATISFIED'] == 'true'?1:0;;
+                                    $scoes->elements[$manifest][$parent->organization][$parent->identifier]->rollupobjectivesatisfied = $sequencing['attrs']['ROLLUPOBJECTIVESATISFIED'] == 'true'?1:0;
                                 }
                                 if (isset($sequencing['attrs']['ROLLUPPROGRESSCOMPLETION'])) {
                                     $scoes->elements[$manifest][$parent->organization][$parent->identifier]->rollupprogresscompletion = $sequencing['attrs']['ROLLUPPROGRESSCOMPLETION'] == 'true'?1:0;
diff --git a/question/format/xhtml/format.php b/question/format/xhtml/format.php
index 7b3d9b657c4..a8c9a97250f 100644
--- a/question/format/xhtml/format.php
+++ b/question/format/xhtml/format.php
@@ -132,7 +132,7 @@ class qformat_xhtml extends qformat_default {
                 $quest_text = $this->repchar( $subquestion->questiontext );
                 $dropdown = html_writer::label(get_string('answer', 'qtype_match', $option+1), 'quest_'.$id.'_'.$option, false, array('class' => 'accesshide'));
                 $dropdown .= html_writer::select($selectoptions, "quest_{$id}_{$option}", '', false, array('id' => "quest_{$id}_{$option}"));
-                $expout .= html_writer::tag('li', $quest_text);;
+                $expout .= html_writer::tag('li', $quest_text);
                 $expout .= $dropdown;
                 $option++;
             }
diff --git a/question/type/calculated/questiontype.php b/question/type/calculated/questiontype.php
index fc996c80fb5..0468dba8ad6 100644
--- a/question/type/calculated/questiontype.php
+++ b/question/type/calculated/questiontype.php
@@ -1150,7 +1150,7 @@ class qtype_calculated extends question_type {
                 }
                 $qtext = $qtext.$str;
             }
-            $answer->answer = $qtext.$qtextremaining;;
+            $answer->answer = $qtext.$qtextremaining;
             $comment->stranswers[$key]= $answer->answer;
 
         }
diff --git a/question/type/questiontypebase.php b/question/type/questiontypebase.php
index 9b51a8b0043..7294decc8e2 100644
--- a/question/type/questiontypebase.php
+++ b/question/type/questiontypebase.php
@@ -342,7 +342,7 @@ class question_type {
         if (empty($form->questiontext['text'])) {
             $question->questiontext = '';
         } else {
-            $question->questiontext = trim($form->questiontext['text']);;
+            $question->questiontext = trim($form->questiontext['text']);
         }
         $question->questiontextformat = !empty($form->questiontext['format']) ?
                 $form->questiontext['format'] : 0;
diff --git a/rating/lib.php b/rating/lib.php
index 9484702b249..969fbd98c5d 100644
--- a/rating/lib.php
+++ b/rating/lib.php
@@ -180,7 +180,7 @@ class rating implements renderable {
         $ratingoptions->scaleid = $this->scaleid;
         $ratingoptions->userid = $this->userid;
 
-        $rm = new rating_manager();;
+        $rm = new rating_manager();
         $items = $rm->get_ratings($ratingoptions);
         $firstitem = $items[0]->rating;
 
diff --git a/report/log/lib.php b/report/log/lib.php
index 1102b8a46e6..c45bf1c8454 100644
--- a/report/log/lib.php
+++ b/report/log/lib.php
@@ -82,7 +82,7 @@ function report_log_can_access_user_report($user, $course) {
         $today = true;
     }
     if (has_capability('report/log:viewtoday', $coursecontext)) {
-        $all = true;;
+        $all = true;
     }
 
     if ($today and $all) {
diff --git a/report/outline/index.php b/report/outline/index.php
index a4144b1624f..21816647fe0 100644
--- a/report/outline/index.php
+++ b/report/outline/index.php
@@ -127,7 +127,7 @@ foreach ($modinfo->sections as $sectionnum=>$section) {
             $attributes['class'] = 'dimmed';
         }
 
-        $activitycell->text = $activityicon . html_writer::link("$CFG->wwwroot/mod/$cm->modname/view.php?id=$cm->id", format_string($cm->name), $attributes);;
+        $activitycell->text = $activityicon . html_writer::link("$CFG->wwwroot/mod/$cm->modname/view.php?id=$cm->id", format_string($cm->name), $attributes);
 
         $reportrow->cells[] = $activitycell;
 
diff --git a/report/security/locallib.php b/report/security/locallib.php
index 8191a67c78e..a4e16d688ae 100644
--- a/report/security/locallib.php
+++ b/report/security/locallib.php
@@ -563,7 +563,7 @@ function report_security_check_defaultuserrole($detailed=false) {
     $result->info    = null;
     $result->details = null;
     $result->status  = null;
-    $result->link    = "<a href=\"$CFG->wwwroot/$CFG->admin/settings.php?section=userpolicies\">".get_string('userpolicies', 'admin').'</a>';;
+    $result->link    = "<a href=\"$CFG->wwwroot/$CFG->admin/settings.php?section=userpolicies\">".get_string('userpolicies', 'admin').'</a>';
 
     if (!$default_role = $DB->get_record('role', array('id'=>$CFG->defaultuserroleid))) {
         $result->status  = REPORT_SECURITY_WARNING;
@@ -621,7 +621,7 @@ function report_security_check_guestrole($detailed=false) {
     $result->info    = null;
     $result->details = null;
     $result->status  = null;
-    $result->link    = "<a href=\"$CFG->wwwroot/$CFG->admin/settings.php?section=userpolicies\">".get_string('userpolicies', 'admin').'</a>';;
+    $result->link    = "<a href=\"$CFG->wwwroot/$CFG->admin/settings.php?section=userpolicies\">".get_string('userpolicies', 'admin').'</a>';
 
     if (!$guest_role = $DB->get_record('role', array('id'=>$CFG->guestroleid))) {
         $result->status  = REPORT_SECURITY_WARNING;
@@ -679,7 +679,7 @@ function report_security_check_frontpagerole($detailed=false) {
     $result->info    = null;
     $result->details = null;
     $result->status  = null;
-    $result->link    = "<a href=\"$CFG->wwwroot/$CFG->admin/settings.php?section=frontpagesettings\">".get_string('frontpagesettings','admin').'</a>';;
+    $result->link    = "<a href=\"$CFG->wwwroot/$CFG->admin/settings.php?section=frontpagesettings\">".get_string('frontpagesettings','admin').'</a>';
 
     if (!$frontpage_role = $DB->get_record('role', array('id'=>$CFG->defaultfrontpageroleid))) {
         $result->status  = REPORT_SECURITY_INFO;
diff --git a/repository/coursefiles/lib.php b/repository/coursefiles/lib.php
index ba4891a3edd..959f34e344a 100644
--- a/repository/coursefiles/lib.php
+++ b/repository/coursefiles/lib.php
@@ -65,7 +65,7 @@ class repository_coursefiles extends repository {
         if (!empty($encodedpath)) {
             $params = unserialize(base64_decode($encodedpath));
             if (is_array($params)) {
-                $filepath  = is_null($params['filepath']) ? NULL : clean_param($params['filepath'], PARAM_PATH);;
+                $filepath  = is_null($params['filepath']) ? NULL : clean_param($params['filepath'], PARAM_PATH);
                 $filename  = is_null($params['filename']) ? NULL : clean_param($params['filename'], PARAM_FILE);
                 $context = context::instance_by_id(clean_param($params['contextid'], PARAM_INT));
             }
@@ -155,7 +155,7 @@ class repository_coursefiles extends repository {
         $contextid  = clean_param($params['contextid'], PARAM_INT);
         $fileitemid = clean_param($params['itemid'], PARAM_INT);
         $filename = clean_param($params['filename'], PARAM_FILE);
-        $filepath = clean_param($params['filepath'], PARAM_PATH);;
+        $filepath = clean_param($params['filepath'], PARAM_PATH);
         $filearea = clean_param($params['filearea'], PARAM_AREA);
         $component = clean_param($params['component'], PARAM_COMPONENT);
         $context = context::instance_by_id($contextid);
diff --git a/repository/lib.php b/repository/lib.php
index 3a7d54bc8ac..714e1b9f454 100644
--- a/repository/lib.php
+++ b/repository/lib.php
@@ -1325,7 +1325,7 @@ abstract class repository {
             $event['existingfile'] = new stdClass;
             $event['existingfile']->filepath = $record->filepath;
             $event['existingfile']->filename = $old_filename;
-            $event['existingfile']->url      = moodle_url::make_draftfile_url($draftitemid, $record->filepath, $old_filename)->out();;
+            $event['existingfile']->url      = moodle_url::make_draftfile_url($draftitemid, $record->filepath, $old_filename)->out();
             return $event;
         }
         if ($file = $fs->create_file_from_pathname($record, $thefile)) {
diff --git a/repository/local/lib.php b/repository/local/lib.php
index f3be1567497..5798ad6f560 100644
--- a/repository/local/lib.php
+++ b/repository/local/lib.php
@@ -61,7 +61,7 @@ class repository_local extends repository {
                 $component = is_null($params['component']) ? NULL : clean_param($params['component'], PARAM_COMPONENT);
                 $filearea  = is_null($params['filearea']) ? NULL : clean_param($params['filearea'], PARAM_AREA);
                 $itemid    = is_null($params['itemid']) ? NULL : clean_param($params['itemid'], PARAM_INT);
-                $filepath  = is_null($params['filepath']) ? NULL : clean_param($params['filepath'], PARAM_PATH);;
+                $filepath  = is_null($params['filepath']) ? NULL : clean_param($params['filepath'], PARAM_PATH);
                 $filename  = is_null($params['filename']) ? NULL : clean_param($params['filename'], PARAM_FILE);
                 $context = context::instance_by_id(clean_param($params['contextid'], PARAM_INT));
             }
diff --git a/repository/repository_ajax.php b/repository/repository_ajax.php
index d2fccd9b098..96c83bb788a 100644
--- a/repository/repository_ajax.php
+++ b/repository/repository_ajax.php
@@ -267,7 +267,7 @@ switch ($action) {
                     $event['existingfile'] = new stdClass;
                     $event['existingfile']->filepath = $saveas_path;
                     $event['existingfile']->filename = $saveas_filename;
-                    $event['existingfile']->url      = moodle_url::make_draftfile_url($itemid, $saveas_path, $saveas_filename)->out();;
+                    $event['existingfile']->url      = moodle_url::make_draftfile_url($itemid, $saveas_path, $saveas_filename)->out();
                 } else {
 
                     $storedfile = $fs->create_file_from_reference($record, $repo_id, $reference);
diff --git a/repository/user/lib.php b/repository/user/lib.php
index b2f4f1414e7..2b8412fc007 100644
--- a/repository/user/lib.php
+++ b/repository/user/lib.php
@@ -63,7 +63,7 @@ class repository_user extends repository {
         if (!empty($encodedpath)) {
             $params = unserialize(base64_decode($encodedpath));
             if (is_array($params)) {
-                $filepath = clean_param($params['filepath'], PARAM_PATH);;
+                $filepath = clean_param($params['filepath'], PARAM_PATH);
                 $filename = clean_param($params['filename'], PARAM_FILE);
             }
         } else {
diff --git a/webservice/upload.php b/webservice/upload.php
index 9c01869e004..c7b563aab29 100644
--- a/webservice/upload.php
+++ b/webservice/upload.php
@@ -131,7 +131,7 @@ foreach ($files as $file) {
     $file_record->filepath  = $filepath;
     $file_record->itemid    = 0;
     $file_record->license   = $CFG->sitedefaultlicense;
-    $file_record->author    = fullname($authenticationinfo['user']);;
+    $file_record->author    = fullname($authenticationinfo['user']);
     $file_record->source    = '';
 
     //Check if the file already exist