MDL-28684 QE2 upgrade: fix undefined $a regression. Thanks Henning!

moodle · Aug 25, 2011 · 97e4e39 · 97e4e39
1 parent ee4dee9
commit 97e4e39
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/question/type/multichoice/db/upgradelib.php b/question/type/multichoice/db/upgradelib.php
@@ -41,7 +41,7 @@ class qtype_multichoice_qe2_attempt_updater extends question_qtype_attempt_updat
 
     public function is_blank_answer($state) {
         // blank multichoice answers are not empty strings, they rather end in a colon
-        return empty($state->answer) || substr($a, -1) == ':';
+        return empty($state->answer) || substr($state->answer, -1) == ':';
     }
 
     public function right_answer() {