Scan a directory and sort the files according to the last modified date.

scandir_and_sort.php

<?php
function scan_dir($dir) {
  $ignored = array('.', '..', '.svn', '.htaccess');
  
  $files = array();
  
  foreach (scandir($dir) as $file) {
    if (in_array($file, $ignored)) continue;
    $files[$file] = filemtime($dir . '/' . $file);
  }
  
  arsort($files);
  $files = array_keys($files);
  
  return ($files) ? $files : false;
}
?>