Is there any integration of PHPUnit with Eclipse PDT?
If not, are there any plans to do so?
I also run PHPUnit as an external tool like DavidWinterbottom proposed.
One thing I also add depending on the type of project is going into Build Options tab and selecting first options after : "run the builder :". This triggers the unit tests to be run every time you save a file. This is great to get a really quick red-green-refactor feedback loop.
I have posted the entire steps with screenshots here : http://nicholaslemay.blogspot.com/2010/02/using-eclipse-phpunit-as-automatic.html