@root I don't know how to use it. Do you have any sample code?

@dev_lak Have you done the dealings with Commercial Bank's Payment gateway..?
This is the integration link they send me. https://test-gateway.mastercard.com/api/documentation/integrationGuidelines/index.html?locale=en_US

I am a trainee web developer, developing a eCommerce site, which need to be linked with payment gateway.
I got the payment gateway details from the bank.
But I don't know how to use the API, what are the parameters should be passed and what will I get back.

Better if I get a sample code set.