if ($_GET) {
    $urun_sil_id = (int)trim(strip_tags($_GET["urunsil"]));
    $urun_sil_sorgusu = "DELETE FROM indexsayfaurun WHERE urun_id = $urun_sil_id";
    $urun_sil_sorgu = mysqli_query($db, $urun_sil_sorgusu);
    if ($urun_sil_sorgu === TRUE) {
echo "tamam";
} else {
echo "hata";
}