avoid undefined function when XCache not loaded

git-svn-id: svn://svn.lighttpd.net/xcache/trunk@1145 c26eb9a1-5813-0410-bd6c-c2e55f420ca7

htdocs/cacher/index.php

@@ -251,12 +251,13 @@ function getEntryList() // {{{
 }
 // }}}
 
-xcache_count(XC_TYPE_PHP); // trigger auth
 if (!extension_loaded('XCache')) {
 	header("Location: ../diagnosis");
 	exit;
 }
 
+xcache_count(XC_TYPE_PHP); // trigger auth
+
 $doTypes = array(
 		'' => _T('Summary'),
 		'listphp' => _T('List PHP'),