Elenco directory in una certa directory

[spoon25]

<select name="dir">
<?php
if ($handle = opendir('.')) {
    while (false !== ($file = readdir($handle))) { 
        if ($file != "." && $file != ".." && is_dir($file)) { 
            echo "<option value=\"$file\">$file</option>\n"; 
        } 
    }
    closedir($handle); 
}
?>
</select>