On the PHP-Tools blog, Gerd Schauffelberger has posted about a new PEAR package he's just created to implement the FIT testing protocol.
Testing_FIT is the PHP and pearish version of Ward Cunningham's FIT http://fit.c2.com. As such it provides an easy to use framework for acceptance software tests.
The package is a simple download and install and gives you four basic fixtures to use Action-, Column-, Row- and Primitve-Fixture (and a Summary-Fixture for stats purposes).