From 2cc5011e2fa9409bf7688c630f93a5a8ec17073b Mon Sep 17 00:00:00 2001
From: Norman Soetbeer <norman.soetbeer@innogames.de>
Date: Fri, 20 Mar 2015 14:24:11 +0100
Subject: [PATCH] use visited lookup with reference to gain performance

---
 src/Symfony/Component/DependencyInjection/Dumper/PhpDumper.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Symfony/Component/DependencyInjection/Dumper/PhpDumper.php b/src/Symfony/Component/DependencyInjection/Dumper/PhpDumper.php
index e8bc744ed9..83eea163c0 100644
--- a/src/Symfony/Component/DependencyInjection/Dumper/PhpDumper.php
+++ b/src/Symfony/Component/DependencyInjection/Dumper/PhpDumper.php
@@ -1151,7 +1151,7 @@ EOF;
      *
      * @return bool
      */
-    private function hasReference($id, array $arguments, $deep = false, $visited = array())
+    private function hasReference($id, array $arguments, $deep = false, &$visited = array())
     {
         foreach ($arguments as $argument) {
             if (is_array($argument)) {