diff --git a/mod/lesson/lesson.php b/mod/lesson/lesson.php index 78fce02e297..8209612281e 100644 --- a/mod/lesson/lesson.php +++ b/mod/lesson/lesson.php @@ -853,7 +853,10 @@ if ($page->qoption) { // MULTIANSWER allowed, user's answer is an array if (isset($_POST['answer'])) { - $useranswers = optional_param('answer'); + $useranswers = $_POST['answer']; + foreach ($useranswers as $key => $useranswer) { + $useranswers[$key] = clean_param($useranswer, PARAM_INT); + } } else { $noanswer = true; break;