From c3a70f83b181e1186be903dab1c41e7fa30f9ea5 Mon Sep 17 00:00:00 2001
From: mjollnir_ <mjollnir_>
Date: Wed, 31 Aug 2005 05:24:17 +0000
Subject: [PATCH] Avoid a warning when displaying multichoice quiz questions

---
 mod/quiz/questiontypes/multichoice/questiontype.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mod/quiz/questiontypes/multichoice/questiontype.php b/mod/quiz/questiontypes/multichoice/questiontype.php
index 2a8a4982335..6313d2b9b6c 100644
--- a/mod/quiz/questiontypes/multichoice/questiontype.php
+++ b/mod/quiz/questiontypes/multichoice/questiontype.php
@@ -295,7 +295,7 @@ class quiz_multichoice_qtype extends quiz_default_questiontype {
             // the single selection case or has a positive score in the multiple
             // selection case
             if ($options->readonly && $options->correct_responses &&
-             in_array($aid, $correctanswers)) {
+                is_array($correctanswers) && in_array($aid, $correctanswers)) {
                 echo '<td valign="top" class="highlight"><label for="'.$id.'">'.
                  format_text("$qnumchar. $answer->answer", FORMAT_MOODLE ,
                  $formatoptions) . '</label></td>';