php.tools is a PHP coding style formatter, it contains different tooling for formatting, testing and code coverage.
After working with Go for quite some time, I have noticed that PHP is missing some built-in tools and php.tools has solved most of my problems in that matter. It seems that now I don't need to think or care about the code formating and when I am working in a team there is almost no need to decide about formating standards as the formatter does that for us while having a really clear code by the end of the day. The other things that one might notice are the testing and code coverage which by using php.tools become easier than ever.
You may find that php.tools has a Sublime Text Plugin which works great in case you are using Sublime Text (otherwise maybe you would want to help with plugins for other IDEs?).
I definitely recommend using it and if you are missing something, feel free to contribute.