Payjacks is an object oriented PHP – Ajax web application framework I’ve written to help write robust and organised web applications. It was designed to require a minimal amount of effort to get your own web application up and running, while helping with such tasks as accessing a (MySQL, currently) database or providing a framework for sending asynchronous Ajax requests back to the server.
Payjacks uses many of the new object-oriented features in PHP 5 to do its work, and handles most of the details required to run a robust web application.