Php Iterative Directory Traversal

dir_traverse.php

<?php
//From php.net comments written by:
//donovan dot pp at gmail dot com
function dir_tree($dir) {
   $path = '';
   $stack[] = $dir;
   while ($stack) {
       $thisdir = array_pop($stack);
       if ($dircont = scandir($thisdir)) {
           $i=0;
           while (isset($dircont[$i])) {
               if ($dircont[$i] !== '.' && $dircont[$i] !== '..') {
                   $current_file = "{$thisdir}/{$dircont[$i]}";
                   if (is_file($current_file)) {
                       $path[] = "{$thisdir}/{$dircont[$i]}";
                   } elseif (is_dir($current_file)) {
                        $path[] = "{$thisdir}/{$dircont[$i]}";
                       $stack[] = $current_file;
                   }
               }
               $i++;
           }
       }
   }
   return $path;
}

?>