Writing a new Payment Module

[richard.rodriguez]

Hi

Our site is based in the UK and we want to integrate with our merchant bank provider - CardSave.

I don't believe there is a payment module available for this so I intend to write my own.

Can anyone point me towards some information regarding writing a custom Payment Module for Zen Cart? I'm confident with PHP and MySQL and have already done some custom coding within Zen Cart. Perhaps I should just open up one of the existing payment modules and use that as a basis.

[richard.rodriguez]

OK, CardSave provided me with an entire Payment Module which appears to be based n the CEON module.

I've installed it but have some issues with Pear/Crypt Blowfish.

I'll raise another thread more specific to that.