Where can I get the product id for the Sberbank payment gateway?

Question

PHP

Sberbank checkout requires an order ID in the store: $vars['orderNumber'] = $order_id;
Where to take it from? If manually entered, then the operation is performed only once and the next time it says "An order with this number has already been processed"
You need to somehow generate this ID, product data is taken from a JSON file (name, description, price)

Answer 1

If there is nowhere to take it from and you don’t need this id, then you can simply generate it
$vars['orderNumber'] = uniqid();