Fix E_NOTICE when calling alltags.php without any parameter

git-svn-id: https://semanticscuttle.svn.sourceforge.net/svnroot/semanticscuttle/trunk@619 b3834d28-1941-0410-a4f8-b48e95affb8f

doc/ChangeLog

@@ -18,6 +18,7 @@ ChangeLog for SemantiScuttle
 - Fix bug #2934891: RSS XML was sometimes invalid because
   special characters did not get escaped.
 - Special header file for shell scripts (header-standalone.php)
+- Fix E_NOTICE when calling alltags.php without any parameter
 
 
 0.95.2 - 2010-01-16

www/alltags.php

@@ -25,9 +25,10 @@ require_once '../src/SemanticScuttle/header.php';
 $b2tservice   = SemanticScuttle_Service_Factory::get('Bookmark2Tag');
 $cacheservice = SemanticScuttle_Service_Factory::get('Cache');
 
-
-
-list($url, $user) = explode('/', $_SERVER['PATH_INFO']);
+list($url, $user) = explode(
+    '/',
+    isset($_SERVER['PATH_INFO']) ? $_SERVER['PATH_INFO'] : '/'
+);
 if (!$user) {
 	header('Location: '. createURL('populartags'));
 	exit;