if($_GET["islem"]=="giris"){
$kullanici = $_POST["kadi"];
$sifre = $_POST["sifre"];
if ((!$kullanici =="") and (!$sifre =="")) {
$sql = "select * from uyeler where kullanici='$kullanici' and sifre='$sifre' ";
$kontrol = mysql_query($sql);
$kayitsayisi = mysql_num_rows($kontrol);
if ($kayitsayisi == "0") {
header ("Location: giris.php?hata=yes");
} else {
$kontrol_ok = mysql_fetch_array($kontrol);
setcookie ("giris", "$kullanici");
header ("Location: index.php");
}
}
else {
header ("Location: giris.php?hata=yes");
}
}