I am software professional working in a IT firm at Mumbai, India.

Currently i am developing an application which requries online transaction facility. I know many paypal system provides this facility.

Still i am confuse which one is best to use and how to implement it in my code. Basically i want any software/tool which allow me/developer of PHP script to enable online payment using such a system.

Kindly help me if you know any such.

Thanks in advance.