Code Inspection: PHP Mess Detector validation
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.