This project is a PHP port of Active Merchant library from Ruby.
The aim is to develop a PHP application to includes payment gateways under common interfaces.
Supported Gateways
Authorize.net Bridge Pay CardStream Centinel 3D Secure Eway Fat Zebra E-xact Eway Fat Zebra Iridium Hsbc Secure e-Payment Mercury Moneris Moneris US PayPal Payflow Pro PayPal Payflow Pro Uk Paypal Express Checkout PayPal Website Payments Pro Piraeus Paycenter Realex WorldPay
https://github.com/akDeveloper/Aktive-Merchant
origin - http://www.pipiscrew.com/?p=3172 aktive-merchant-for-php