John Conde has shared his multi-part guide to getting your application integrated with the popular payment service Authorize.net.

As an Authorize.Net blogger, I decided to write a series of articles that outlined not only the basics of handling an ecommerce transaction, but also included some best practices as well. These were demonstrated using a web-based payment form that when complete forms a real-world, production ready solution. Since there was a lot of ground to cover, I broke the tutorial into eleven parts.

Parts of the series cover topics like:

• reading/sanitizing data
• handling validation errors
• preventing duplicate submissions
• preventing automated form submissions

For those that want to jump straight into the code, he also links to his sample payment form and the Authorize.net PHP SDK.