if ($_POST['gun_baslik']) {
            foreach ($_POST['gun_baslik'] as $key => $value) {
            $gun_aciklama = $_POST["gun_aciklama"][$key];
            $gun_id = $_POST["gun_id"][$key];
            if(isset($gun_id)){
                $deger = "gun_id = '".$gun_id."'";
            }else{
                $deger = "gun_baslik = '".$value."'";
            }
            $kontrolq = mysql_fetch_array(mysql_query("SELECT gun_id FROM gunler WHERE ".$deger." AND tur_id = '".$duzenlenecek_id."'"));
         if (count($kontrolq["gun_id"]) >= 1) {
            $insert = mysql_query("UPDATE gunler SET gun_baslik = '".$value."', gun_aciklama = '".$gun_aciklama."' WHERE ".$deger." AND tur_id = '".$duzenlenecek_id."'");
                }else{
            $update = mysql_query("INSERT INTO gunler SET gun_baslik = '".$value."', gun_aciklama = '".$gun_aciklama."', tur_id = '".$duzenlenecek_id."'");
                }
            }                              
        }