php yardım lütfen

    function cevir($sayiz, $separator) {
    $sayarr = explode($separator,$sayiz);
    $str = "";
    $items = array(
    array("", ""),
    array("Bir", "On"),
    array("İki", "Yirmi"),
    array("Üç", "Otuz"),
    array("Dört", "Kırk"),
    array("Beş", "Elli"),
    array("Altı", "Altmış"),
    array("Yedi", "Yetmiş"),
    array("Sekiz", "sevken"),
    array("Dokuz", "Doksan")
    );
    for ($eleman = 0; $eleman<count($sayarr); $eleman++) {
    for ($basamak = 1; $basamak <=strlen($sayarr[$eleman]); $basamak++) {
    $basamakd = 1 + (strlen($sayarr[$eleman]) - $basamak);
    try {
    switch ($basamakd) {
    case 5:
    $str = $str . " " . $items[substr($sayarr[$eleman],$basamak - 1,1)][0] . " Yüz";
    break;
    case 4:
    $str = $str . " " . $items[substr($sayarr[$eleman],$basamak - 1,1)][1];
    break;
    case 3:
    if($items[substr($sayarr[$eleman],$basamak - 1,1)][0]=="") {
    $str.=" ";
    }
    elseif ($items[substr($sayarr[$eleman],$basamak - 1,1)][0] != "Bir" ) $str = $str . " " . $items[substr($sayarr[$eleman],$basamak - 1,1)][0] . " Yüz";
    else $str = $str . " Yüz";
    break;
    case 2:
    $str = $str . " " . $items[substr($sayarr[$eleman],$basamak - 1,1)][1];
    break;
    default:
    $str = $str . " " . $items[substr($sayarr[$eleman],$basamak - 1,1)][0];
    break;
    }
    } catch (Exception $err) {
    echo $err->getMessage();
    break;
    }
    }
    if ($eleman< 1) $str = $str . " TL";
    else {
    if ($sayarr[1] != "00") $str = $str . " KRS";
    }
    }
    return $str;
    }