How to make a form for checking the balance of a bonus card?

Question

PHP

The site requires a simple form for checking the balance of a bonus card.
The client enters the card number and last name and receives the balance of the card as a result.
In the constructor of our cms (ancient internet.cms) there is no way to create such a form. I don't have the skills to write them by hand.
Please advise the simplest solution to this problem.
Thanks in advance.

Answer 1

The easiest solution is to hire someone who can.
A couple of hours to deal with cms, 20 minutes to make a form.

Answer 2

Well, if I write to you:

// count - столбец с номерами счетов, client - таблица клиентов
$query = "SELECT count FROM client"; 
$stmt = $db->prepare($query);
$stmt->execute();
$ArrLink = $stmt->fetchAll(PDO::FETCH_ASSOC);
echo "$ArrLink[$i]['count']"; // тут $i номер счёта клиента

it is unlikely to help you much without technical knowledge.