In the first part of this article I presented the case for Continuous Integration. Now we’ll install and set Jenkins up to monitor the automatic building of a simple demonstration PHP application. We’ll begin with the demo project, then address Jenkins’ installation, and finally set it up and watch it running.
He includes a sample project structure, complete with a PHP class and its tests. He shows how to manually run things first (so you'll know what the commands do), the contents of the class/tests and the example Ant configuration file. He's also included screenshots of the Jenkins interface, showing how to create a build, add a new step and let the build run to evaluate the results.