foreach($_POST as $veri){
$istek = $veri['istek'];
$adet = $veri['adet'];
$kaydet=$db->prepare("INSERT INTO istek_durum SET isd_istekid=:iid, isd_Hesapid=:hid, isd_hafta=:hft, isd_adet=:adt");
$al=$kaydet->execute(array('iid'=> $istek,'hid'=> $Hid, 'hft'=>$hafta, 'adt'=>$adet));
    }