on php 5.3.3 encode the single quote properly to workaround php bug

example failed tests https://travis-ci.org/piwik/piwik/jobs/32095780

.travis.yml

@@ -49,7 +49,7 @@ matrix:
       env: TEST_SUITE=AngularJSTests MYSQL_ADAPTER=PDO_MYSQL
     - php: hhvm
       env: TEST_SUITE=AngularJSTests MYSQL_ADAPTER=PDO_MYSQL
-    # Only run Mysqli tests on PHP 5.5
+    # Only run Mysqli tests on PHP 5.3
     - php: 5.4
       env: TEST_SUITE=IntegrationTests MYSQL_ADAPTER=MYSQLI
     - php: 5.4
@@ -75,6 +75,7 @@ matrix:
     - php: hhvm
       env: TEST_SUITE=CoreTests MYSQL_ADAPTER=MYSQLI
 
+
 script: ./travis.sh
 
 before_install:

tests/PHPUnit/Impl/TestRequestResponse.php

@@ -104,10 +104,22 @@ class TestRequestResponse
         $apiResponse = $this->normalizePdfContent($apiResponse);
         $apiResponse = $this->removeXmlFields($apiResponse);
         $apiResponse = $this->normalizeDecimalFields($apiResponse);
+        $apiResponse = $this->normalizeEncodingPhp533($apiResponse);
 
         return $apiResponse;
     }
 
+    private function normalizeEncodingPhp533($apiResponse)
+    {
+        if($this->params['format'] != 'xml') {
+            return;
+        }
+        if(!IntegrationTestCase::isPhpVersion53()) {
+            return;
+        }
+        return str_replace("'", ''', $apiResponse);
+    }
+
     private function removeIdSubtableParamFromUrlsInResponse($apiResponse)
     {
         return preg_replace("/idSubtable=[0-9]+/", 'idSubtable=', $apiResponse);