dir. name to ascii

gistfile1.aw

<?php
header('Content-Type: text/plain; charset=ISO-8859-1');
ini_set('memory_limit', '512M');
ini_set('max_execution_time', '0');
defined('DS') OR define('DS', DIRECTORY_SEPARATOR);
setlocale(LC_ALL, 'en_US.ISO-8859-1');
function clearUTF($s) {
	$r = '';
	$s1 = iconv('ISO-8859-1', 'ASCII//TRANSLIT', $s);
	for ($i = 0; $i < strlen($s1); $i++) {
		$ch1 = $s1[$i];
		$ch2 = mb_substr($s, $i, 1);
		$r .= $ch1=='?'?$ch2:$ch1;
	}
	return $r;
}
function _2Ascii($dir) {
	$items = scandir($dir);
	$dirIgnore = array('.','..');
	foreach($items as $item) {
		if(in_array($item,$dirIgnore))
			continue;
		$oldName = $dir.DS.$item;
		$newName = $dir.DS.clearUTF($item);
		@rename($oldName, $newName);
		if(is_dir($newName))
			_2Ascii($newName);
	}
}
$dir = dirname(__FILE__).DS.'resources'.DS.'export';
_2Ascii($dir);