Michael Kimsal has put together a small page to help you get started using the phpUnderControl continuous integration system:

If you're not using phpUnderControl, you owe it to yourself to check it out, as I think 'continuous integration' will likely change the way you think of development. I've used CruiseControl in the past for PHP, but the PHP-specifics phpUnderControl brings to the project are too much to pass up.

The page mentions some of the common issues you might have in getting started - installation problem, the use of the PHP Code Sniffer and the Project Mess Detector from PHPUnit.

Sebastian Bergmann has officially announced the creation of a new planet in the PHP community - one specifically for the PHPUnit testing suite - Planet PHPUnit.

At the moment only three feeds are aggregated on Planet PHPUnit: release announcements, articles about new features in PHPUnit written by myself, and Manuel Pichler's blog postings on phpUnderControl.

He also is requesting that anyone out there currently writing on any topics surrounding the popular unit testing framework send him an email letting him know where it's at.