I\'m curious to see how other developers go about testing their web sites. PHP specifically in my case, but this probably spans multiple languages. I\'ve been working on a site
You might want to check out PHPUnit http://www.phpunit.de/manual/current/en/
I have started using it on my PHP projects and it's very easy to work with and very powerful. In particular, learn and use mocks: http://www.phpunit.de/manual/3.0/en/mock-objects.html
Mocking is especially important when unit testing applications that do database operations.