From b1448ecdc738119bcb372fca02e22b1806d04b6a Mon Sep 17 00:00:00 2001
From: Fabien Potencier <fabien.potencier@gmail.com>
Date: Sun, 30 Jan 2011 20:13:00 +0100
Subject: [PATCH] [HttpFoundation] fixed typo

---
 src/Symfony/Component/HttpFoundation/Response.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Symfony/Component/HttpFoundation/Response.php b/src/Symfony/Component/HttpFoundation/Response.php
index 9b36e9c7da..f9a2c449de 100644
--- a/src/Symfony/Component/HttpFoundation/Response.php
+++ b/src/Symfony/Component/HttpFoundation/Response.php
@@ -570,7 +570,7 @@ class Response
      */
     public function setCache(array $options)
     {
-        if ($diff = array_diff_key($options, array('etag', 'last_modified', 'max_age', 's_maxage', 'private', 'public'))) {
+        if ($diff = array_diff(array_keys($options), array('etag', 'last_modified', 'max_age', 's_maxage', 'private', 'public'))) {
             throw new \InvalidArgumentException(sprintf('Response does not support the following options: "%s".', implode('", "', array_keys($diff))));
         }