<?php
  if ($handle = opendir('.')) {
    while (false !== ($file = readdir($handle))) {
      if ($file != "." && $file != ".." && strpos($file, "_noincluir") === false && $file != "index.php") {
        $thelist .= '<li><a href="'.$file.'">'.$file.'</a></li>';
      }
    }
    closedir($handle);
  }
?>
<h1>Lista de recursos:</h1>
<ul><?php echo $thelist; ?></ul>