problem med php dir

PHP kode 

 $this_file = basename($_SERVER['PHP_SELF']); // index.php, page.php osv...

PHP kode 

 if ($handle = opendir('/directory')) {
 
     while (false !== ($entry = readdir($handle))) {
         if($entry == "index.php")
             echo $entry;
     }
 
     closedir($handle);
 }

PHP kode 

 foreach(glob('*', GLOB_ONLYDIR) as $dir) {
       if ($handle = opendir($dir)) {
 
             while (false !== ($entry = readdir($handle))) {
                 if($entry == "index.php")
                     echo $dir . "<br />---" . $entry . "<br /><br />";
             }
 
             closedir($handle);
         }
     }