Learn Payment Gateway, SSL and PCI DSS compliance checking - PHP

I am wanting to learn how to develop a payment gateway in PHP and the best practices(such as SSL and PCI DSS etc). Can anybody recommend any books/blogs that would help me with this, everything 开发者_如何学运维I have found is payment gateway specific and hasn't helped me understand.

I wrote an article a few years back that covers the basics of ecommerce. It's called Ecommerce 101. Hopefully you find it helpful.