From 29cbd16f27e4a2f90c6ecc55cdf72ff7fbe1941b Mon Sep 17 00:00:00 2001
From: Jean-Michel Vedrine <vedrine@vedrine.org>
Date: Sun, 17 Dec 2017 13:32:43 +0100
Subject: PHP7 constructor and statistics bug fix

---
 questiontype.php | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'questiontype.php')

diff --git a/questiontype.php b/questiontype.php
index a49698a..f49bd55 100644
--- a/questiontype.php
+++ b/questiontype.php
@@ -529,6 +529,8 @@ class qtype_algebra extends question_type {
             $responses[$aid] = new question_possible_response($answer->answer,
                     $answer->fraction);
         }
+        $responses[0] = new question_possible_response(
+                    get_string('didnotmatchanyanswer', 'question'), 0);
         $responses[null] = question_possible_response::no_response();
 
         return array($questiondata->id => $responses);
-- 
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