The Zend Developer Zone has a new post from Vikram Vaswani about accepting credit card payments through Authorize.net in the OXID eShop CE (e-commerce platform).

Now, if you're planning to start an online store, it should be pretty clear that accepting electronic payments isn't an option - it's a necessity for you to compete effectively. And that's where this article comes in. Over the next couple of pages, I'll show you how to begin accepting credit card payments for your products using the open source OXID shopping cart and the Authorize.Net payment gateway...with, of course, a little bit of PHP to make things interesting!

The glue between the OXID install and Authorize.net is created with the PEAR HTTP_Request2 package. This combined with a little extra PHP code can be installed and used as a component directly inside the application. He gives full code and screenshots to help you get it up and running on your install.