en tepedeki print_r($_GET); bunu silin deneyin. bu arada ben kodu incelemeye devam ediyorum.

GameStaL adlı üyeden alıntı: mesajı görüntüle
buyrun
<?php include("mysql.php");
print_r($_GET);

 ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
</head>

<body>
<?php
function url_cevir($yazi) {
$yazi = trim($yazi);
$yeni = array('ü','Ü','ö','Ö','ş','Ş','ç','Ç','ı','İ','ğ','Ğ',' ');
$eski = array('%C3%BC','%C3%9C','%C3%B6','%C3%96','%C5%9F','%C5%9E','%C3%A7','%C3%87','%C4%B1','%C4%B0','%C4%9F','%C4%9E','-');
$yeni_yazi = str_replace($eski,$yeni,$yazi);
return $yeni_yazi;
}
$link = "http://".$_SERVER["HTTP_HOST"]."".$_SERVER["REQUEST_URI"]."";
$link = url_cevir($link);
echo $link;
mysql_query("SET NAMES 'utf8'");
$sqlsorgu = mysql_query("SELECT * FROM listurl where shorturl = '$link'");
while($yazdir=mysql_fetch_array($sqlsorgu)){
	$longurl = $yazdir["longurl"];
	header("Location:$longurl");
	$hit = $yazdir["hit"] + 1;
	mysql_query("UPDATE listurl SET hit = '$hit' where shorturl = '$link'");
}
?>
</body>
</html>