Reports coding style problems detected by PHP Mess Detector.

The inspection requires PHP Mess Detector to be properly installed and set up in the IDE under Settings/Preferences | Languages & Frameworks | PHP | Quality Tools | Mess Detector.

It is recommended to install PHP Mess Detector either as a Composer dependency or globally. See PHP Mess Detector installation (phpmd.org) for details.

You can use a predefined set of rules or add your own by specifying valid ruleset.xml files. See the rules index (phpmd.org) and How to create a custom rule set (phpmd.org) for details.