From 09820497cb0ca794c210ba9f8e1dd41ac8850d5c Mon Sep 17 00:00:00 2001
From: nacin <nacin@1a063a9b-81f0-0310-95a4-ce76da25c4cd>
Date: Sat, 13 Feb 2010 02:35:41 +0000
Subject: [PATCH] Fix notice in get_cat_name(). Return empty string if category
 does not exist, fixes #11737.

git-svn-id: http://svn.automattic.com/wordpress/trunk@13074 1a063a9b-81f0-0310-95a4-ce76da25c4cd
---
 wp-includes/category.php | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/wp-includes/category.php b/wp-includes/category.php
index 26c6a4281..b2c05d273 100644
--- a/wp-includes/category.php
+++ b/wp-includes/category.php
@@ -180,11 +180,13 @@ function get_cat_ID( $cat_name='General' ) {
  * @since 1.0.0
  *
  * @param int $cat_id Category ID
- * @return string Category name
+ * @return string Category name, or an empty string if category doesn't exist.
  */
 function get_cat_name( $cat_id ) {
 	$cat_id = (int) $cat_id;
 	$category = &get_category( $cat_id );
+	if ( ! $category || is_wp_error( $category ) )
+		return '';
 	return $category->name;
 }