<?

include $_SERVER['DOCUMENT_ROOT'] . "/WebBuilder/main.class.php";

$db = new DBMain();

$res = $db->exec_query('clients', ['*'], '', '', '', '', "client_code = '{$_GET['client_code']}'");
if ($res->num_rows > 0) {
    $row = $res->fetch_assoc();
    echo $row['record_id'];
}else{
    echo "FAILED";
}