From 5e9b1634c68dc70bbc6480fddb303d8807a943d2 Mon Sep 17 00:00:00 2001
From: Martin Jansen <mj@php.net>
Date: Thu, 7 Feb 2002 11:15:54 +0000
Subject: [PATCH] * Partially fix bug #15423.

---
 pear/HTTP.php | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/pear/HTTP.php b/pear/HTTP.php
index b03a1e446bb..de568f239c8 100644
--- a/pear/HTTP.php
+++ b/pear/HTTP.php
@@ -107,7 +107,8 @@ class HTTP {
         /* Check for a valid language code in the top-level domain of
          * the client's host address.
          */
-        if (ereg("\.[^\.]+$", $HTTP_SERVER_VARS['REMOTE_HOST'], $arr)) {
+        if (isset($HTTP_SERVER_VARS['REMOTE_HOST']) &&
+            ereg("\.[^\.]+$", $HTTP_SERVER_VARS['REMOTE_HOST'], $arr)) {
             $lang = strtolower($arr[1]);
             if (!empty($supported[$lang])) {
                 return $lang;