$db = Db::getInstance();
$idCustomer = $params['id_customer'];
$getTopCustomers = $db->executeS('SELECT id_customer FROM '._DB_PREFIX_.'customer ORDER BY id_customer LIMIT 200');
$foundIn200 = false;
foreach ($getTopCustomers as $customer) {
if ($customer['id_customer'] == $idCustomer) {$foundIn200 = true; break;}
}
if ($foundIn200 == true){your send gift function}