Need help configuring phpMyAdmin?

Hey everybody, I'm working on learning php & mysql. I successfully set up the newest Apache & php and everything ran fine. I installed mysql and then phpMyAdmin to manage it. My problem is that whenever I go to //localhost/phpmyadmin, it gives me an error message saying that "The mysql extension is missing." It used to say: "The mysqli extension is missing" but I went to php.ini and temoved the ; before extension = mysqli. I tried removing the ; before mysql, but the error message remained. I've restarted apache, my computer, etc. Nothing is working.