What is a Payment Gateway and How Does a Payment Gateway Work?

What are the payment gateways?

What is payment gateway with example?

How does the payment gateway works?

Here's a more thorough explanation of how payment gateways operate:

What is a payment gateway service provider?

What is a payment gateway fee?

How does mastercard payment gateway work ?

How does crypto payment gateway work?

Which payment methods are accepted by payment gateways?