On the Hackernoon site there's a recent tutorial showing you how to hook the PHP-CS-Fixer tool into PhpStorm for easy execution during development rather than after.

The PHPStorm IDE by JetBrains is probably one of my favorite editors. It has its flaws (constant indexing…) but overall its a great tool for me. However, my focus today is not on PHPStorm per say but rather how to add the awesome functionality of using project page. Depending on your platform you will need to make some decisions, namely how you configure the rules of PHP-CS-Fixer. I am currently on Windows but I will try to make sure these instructions work in both *nix and Windows environments.

He then walks you through some prerequisites (both pieces of software installed basically) and the decisions to make based on your platform. He then provides screenshots and descriptions showing where to go in the PhpStorm IDE to add the PHP-CS-Fixer as a new "Tool", the working directory to use and how to set up a keymap to execute the tool. He includes an example of the output when things are correctly configured and working together.