PHP 5.3 compatibility.

F21 · F21 · commit e1b3f83f56e7 · 2013-06-23T15:45:02.000+10:00
diff --git a/lib/triagens/ArangoDb/Connection.php b/lib/triagens/ArangoDb/Connection.php
@@ -332,7 +332,8 @@ private function executeRequest($method, $url, $data)
             // call tracer func
             if ($this->_options[ConnectionOptions::OPTION_ENHANCED_TRACE]) {
                 list($header) = HttpHelper::parseHttpMessage($request);
-                $traceFunc(new TraceRequest(HttpHelper::parseHeaders($header)[2], $method, $url, $data));
+                $headers = HttpHelper::parseHeaders($header);
+                $traceFunc(new TraceRequest($headers[2], $method, $url, $data));
             } else {
                 $traceFunc('send', $request);
             }
