On the SitePoint PHP blog there's a tutorial posted helping you get started with Sismo, a simple component that can help you with the continuous testing of your PHP applications. Sismo is a project from SensioLabs, the same group behind Symfony and Twig (and several other popular tools).

The PHP community started to adopt the testing culture relatively recently. Despite there being some debates on how to achieve this, nobody can argue the importance of having your code fully covered by tests. In this article, we’re going to explore a tool that will help you in a major part of the testing culture called continuous testing.

Sismo is a small component which you can easily integrate with your projects to make the process of continuous testing easier. Sismo's main focus is to run your tests and send you status notifications.

They help you get the tool installed (either from GitHub or directly) and configure your project with a simple PHP file. They also include instructions on how to execute the tests for the project and an example of the resulting output. The tutorial then shows how to set up a project using the remote repository handling, setting up notifiers for failures, storing the build information and using it in a git hook.