From 027bc973591065fd4cd05bc316adf0e3611b33db Mon Sep 17 00:00:00 2001
From: Janusz Slota <janusz.slota@nixilla.com>
Date: Wed, 12 Feb 2014 16:28:12 +0000
Subject: [PATCH] Callback: [Validator, validate] expects validate to be static

Otherwise you'll get:
```
ContextErrorException: Runtime Notice: call_user_func() expects parameter 1 to be a valid callback, non-static method Vendor\Package\Validator::validate() should not be called statically in Symfony/Component/Validator/Constraints/CallbackValidator.php
```
---
 reference/constraints/Callback.rst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/reference/constraints/Callback.rst b/reference/constraints/Callback.rst
index e370c46ecf1..36b55e97910 100644
--- a/reference/constraints/Callback.rst
+++ b/reference/constraints/Callback.rst
@@ -160,7 +160,7 @@ your validation function is ``Vendor\Package\Validator::validate()``::
 
     class Validator
     {
-        public function validate($object, ExecutionContextInterface $context)
+        public static function validate($object, ExecutionContextInterface $context)
         {
             // ...
         }