From 4021470fd33f498e56aa4183f5da8a8d70d92c85 Mon Sep 17 00:00:00 2001
From: Glenn Ansley <glenn_ansley@ncsu.edu>
Date: Wed, 14 Sep 2011 20:57:48 +0100
Subject: [PATCH] MDL-29212 RCount incorrect in Quiz Analysis Report when
 correct answer is 0

---
 mod/quiz/report/analysis/report.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mod/quiz/report/analysis/report.php b/mod/quiz/report/analysis/report.php
index d2f0b015e64..2db38b2bcfb 100644
--- a/mod/quiz/report/analysis/report.php
+++ b/mod/quiz/report/analysis/report.php
@@ -175,7 +175,7 @@ class quiz_report extends quiz_default_report {
                 }
                 $responses = get_question_actual_response($quizquestions[$i], $states[$i]);
                 foreach ($responses as $resp){
-                    if ($resp) {
+                    if ('' !== $resp) {
                         if ($key = array_search($resp, $questions[$qid]['responses'])) {
                             $questions[$qid]['rcounts'][$key]++;
                         } else {