how to create payment on my project?

Question

the buyer needs to enter the number of his e-wallet in a line, the program checks the number, checks the account on the wallet if there is not enough money, gives an error if there is enough money, debited the required amount from the account, and then performed the paid function. must be done in the PHP programming language. Please send code with comments.

Answer 1

you need an api of a payment gateway. how else would you access a buyers funds legally?