public static function sensei_delete_quiz_answers($quiz_id = 0, $user_id = 0) { if (intval($user_id) == 0) { $user_id = get_current_user_id(); } $delete_answers = false; if (intval($quiz_id) > 0) { $questions = Sensei_Utils::sensei_get_quiz_questions($quiz_id); foreach ($questions as $question) { $delete_answers = Sensei_Utils::sensei_delete_activities(array('post_id' => $question->ID, 'user_id' => $user_id, 'type' => 'sensei_user_answer')); } } return $delete_answers; }