if (yetkikontrol()) {
    $talepsor = $db->prepare("SELECT * FROM ikizintalebi ORDER BY ikizintalep_id DESC");
} else {
    $kulid = $_SESSION['kul_id'];
    $talepsor = $db->prepare("SELECT * FROM ikizintalebi WHERE FIND_IN_SET(:kulid, talep_kul) AND talep_durum IN (1, 2) ORDER BY ikizintalep_id DESC");
    $talepsor->bindParam(':kulid', $kulid, PDO::PARAM_INT);
}

$talepsor->execute();