From e572783991dbfa81d0d2509fe34b92c2919018be Mon Sep 17 00:00:00 2001
From: Ryan Boren <ryan@git.wordpress.org>
Date: Mon, 21 Apr 2008 17:35:20 +0000
Subject: [PATCH] Check if PATH_INFO is set to avoid undefined index errors.
 see #5160

git-svn-id: https://develop.svn.wordpress.org/trunk@7757 602fd350-edb4-49c9-b593-d223f7449a82
---
 wp-settings.php | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/wp-settings.php b/wp-settings.php
index ae551eab1a..1480288e0a 100644
--- a/wp-settings.php
+++ b/wp-settings.php
@@ -69,10 +69,12 @@ if ( empty( $_SERVER['REQUEST_URI'] ) ) {
 	else
 	{
 		// Some IIS + PHP configurations puts the script-name in the path-info (No need to append it twice)
-		if ( $_SERVER['PATH_INFO'] == $_SERVER['SCRIPT_NAME'] )
-			$_SERVER['REQUEST_URI'] = $_SERVER['PATH_INFO'];
-		else
-			$_SERVER['REQUEST_URI'] = $_SERVER['SCRIPT_NAME'] . $_SERVER['PATH_INFO'];
+		if ( isset($_SERVER['PATH_INFO']) ) {
+			if ( $_SERVER['PATH_INFO'] == $_SERVER['SCRIPT_NAME'] )
+				$_SERVER['REQUEST_URI'] = $_SERVER['PATH_INFO'];
+			else
+				$_SERVER['REQUEST_URI'] = $_SERVER['SCRIPT_NAME'] . $_SERVER['PATH_INFO'];
+		}
 
 		// Append the query string if it exists and isn't null
 		if (isset($_SERVER['QUERY_STRING']) && !empty($_SERVER['QUERY_STRING'])) {