From c30c392e911e972bf091ae257b99d82b0fc35ae9 Mon Sep 17 00:00:00 2001
From: westi <westi@1a063a9b-81f0-0310-95a4-ce76da25c4cd>
Date: Thu, 7 Jan 2010 08:27:02 +0000
Subject: [PATCH] Allow people to attach PHP 5.3 Closures to filters and
 actions. Fixes #10493 props scribu.

git-svn-id: http://svn.automattic.com/wordpress/trunk@12641 1a063a9b-81f0-0310-95a4-ce76da25c4cd
---
 wp-includes/plugin.php | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/wp-includes/plugin.php b/wp-includes/plugin.php
index cf92494d1..3e212e2ba 100644
--- a/wp-includes/plugin.php
+++ b/wp-includes/plugin.php
@@ -681,9 +681,12 @@ function _wp_filter_build_unique_id($tag, $function, $priority) {
 	global $wp_filter;
 	static $filter_id_count = 0;
 
-	if ( is_string($function) ) {
+	if ( is_string($function) )
 		return $function;
-	} else if (is_object($function[0]) ) {
+
+	$function = (array) $function;
+
+	if (is_object($function[0]) ) {
 		// Object Class Calling
 		if ( function_exists('spl_object_hash') ) {
 			return spl_object_hash($function[0]) . $function[1];
@@ -698,7 +701,7 @@ function _wp_filter_build_unique_id($tag, $function, $priority) {
 			} else {
 				$obj_idx .= $function[0]->wp_filter_id;
 			}
-	
+
 			return $obj_idx;
 		}
 	} else if ( is_string($function[0]) ) {