From 7e9cf1d2c01dbca12112b7988396ce24c84b77cc Mon Sep 17 00:00:00 2001
From: Scott Taylor <wonderboymusic@git.wordpress.org>
Date: Thu, 26 Jun 2014 00:56:07 +0000
Subject: [PATCH] `return false` in `has_nav_menu()` if the `$location` does
 not exist in the `$_wp_registered_nav_menus` global.

Props SergeyBiryukov.
Fixes #27735.


git-svn-id: https://develop.svn.wordpress.org/trunk@28836 602fd350-edb4-49c9-b593-d223f7449a82
---
 src/wp-includes/nav-menu.php | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/wp-includes/nav-menu.php b/src/wp-includes/nav-menu.php
index ee926ccfa4..782ecca89c 100644
--- a/src/wp-includes/nav-menu.php
+++ b/src/wp-includes/nav-menu.php
@@ -142,6 +142,12 @@ function get_nav_menu_locations() {
  * @return bool Whether location has a menu.
  */
 function has_nav_menu( $location ) {
+	global $_wp_registered_nav_menus;
+
+	if ( ! isset( $_wp_registered_nav_menus[ $location ] ) ) {
+		return false;
+	}
+
 	$locations = get_nav_menu_locations();
 	return ( ! empty( $locations[ $location ] ) );
 }