PHP Shipping Modules (Canada Post)
Over the last month I have been working on an e-commerce store for our company. One thing I did realize that most of the shipping modules out there are quite complex to use. So, I decided to create a simple Canada Post PHP Class.
Canada Post's specification requires parsing of XML files to retrieve values, hence I have used PHP-5's new features like DomDocument, DomXPath and stream functions which will only work with PHP-5 (you would need additional libraries to run it in PHP-4)