Invoicing for payment between users - how to implement?

Question

PHP

There are 100500 users.
Everyone has an e-wallet in their profile.
A new user (A) selects N users (N1...NN) and must pay them 1 ruble each.
Questions:

1. how to issue an invoice for payment for user A so that he pays directly to the wallets of users N1...NN ?
   
2. which payment system to choose?
   
3. how to check the fact of payment?
   

Answer 1

You need to choose a payment system that supports mass payments. For example, Payer. And then everything will be done for you by a program that works with the API of this payment system. Those. invoicing and that's all your website/program should do. And the payment system is only for making payments. I doubt that already somewhere there is such a ready-made functionality within the framework of the payment system.

Answer 2

I apparently misunderstood the situation.
you need to generate an invoice for payment between two users like this: Yandex.money invoicing
drew a picture to understand the process)

Answer 3

http://payin-payout.net, allow you to accept payments in various ways and withdraw services and cards visa / master / world in different currencies, plus transfers within the system by accounts. There is an API for input and output.