Finished my Green Belt exam today. This covered PHP and MySQL. Didn't feel confident on the way in, but finished strong. Got everything done in less than 2 hours out of the given 4.
Overall: It says a lot about how much you learn when in entire week you'll be struggling with a subject, and then 1 week later you can completely crush an assignment in 2 hours that would have taken you 8+ hours.
Going to finish AJAX this week and move onto OOP and CodeIgniter.