From aa1d4b1d01d279e3745f9faf4786a2ca91009991 Mon Sep 17 00:00:00 2001
From: Ryan Boren <ryan@git.wordpress.org>
Date: Sun, 15 Jul 2007 17:59:05 +0000
Subject: [PATCH] Return hook as null instead of empty string.  Props DD32.
 fixes #4639

git-svn-id: https://develop.svn.wordpress.org/trunk@5803 602fd350-edb4-49c9-b593-d223f7449a82
---
 wp-admin/includes/plugin.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/wp-admin/includes/plugin.php b/wp-admin/includes/plugin.php
index be5f28cd01..5d2570ca52 100644
--- a/wp-admin/includes/plugin.php
+++ b/wp-admin/includes/plugin.php
@@ -291,7 +291,7 @@ function get_plugin_page_hook( $plugin_page, $parent_page ) {
 	if ( isset( $wp_filter[$hook] ))
 		return $hook;
 	else
-		return '';
+		return null;
 }
 
 function get_plugin_page_hookname( $plugin_page, $parent_page ) {
@@ -377,4 +377,4 @@ function user_can_access_admin_page() {
 	return true;
 }
 
-?>
\ No newline at end of file
+?>