Lifehack.org points to a new Sourceforge project where you can install your own Getting Things Done system to your web server.
gtd-php is an open source, web-based implementation of the Getting Things Done (GTD) personal organization system.
It is written in PHP and MySQL, and assumes the pages are served using Apache.
According to some of the feedback, it might require more that just basic PHP skills to install it.
Link: gtd-php Getting Things Done with PHP.
Technorati Tags: gtd, Productivity, php, scripting