Hi
I've created tuned coding style checks for phpcs, which is now being used on http://ci.phpmyadmin.net/. As you can see we got rid of 2000 useless warnings (mostly about missing @author/@copyright/@link, which we don't use).
However we still have more than 10000 violations. Some are simply not fixable or hard to fix, but some are easy (like adding documentation). Anyway please try not to introduce new violations if possible :-). We want nice code base that is easy to understand and following coding standard helps here a lot.