strtolower workaround for accented chars like á

strtolower workaround for accented chars like á
(does not work with php5 on win and linux, below workaround does)

function strtolower2($s){
	$ln = strlen($s);
	$ln1 = $ln -1;
	for($i=0; $i < $ln; $i++){
		$k = ord(substr($s, $i, 1));
		if($k>=65 && $k <= 90){
			if($i > 0){
				$l1 = substr($s, 0, $i);
			}else{
				$l1 ='';
			}
			$l1 = $l1 . chr($k+32);
			if($i < $ln1){
				$l1 = $l1 . substr($s, $i  + 1);
			}
			$s = $l1;

		}
	}
	return $s;
}

PHP:

 

No need to reinvent the wheel: www.php.net/mb_strtolower