Travis Swicegood is a professional programmer; consultant with a focus on web applications, performance, and stability; and author of Pragmatic Version Control using Git. He has been using PHP since '99 and still remembers how revolutionary PHP 4 was, but can't remember why. He's one of the developers on SimpleTest; the lead developer of PHPT; a TDD advocate—sometimes called a zealot—and lurker on many a PHP project mailing list when not learning other programminglanguages for fun, exploring his surroundings on bike, or tasting his latest kitchen and home-brew creations.