Runs PHP Code Sniffer to find coding style problems.
The inspection requires PHP Code Sniffer to be properly installed and set up in the IDE under Settings/Preferences | Languages & Frameworks | PHP | Quality Tools | Code Sniffer.
It is recommended to install PHP Code Sniffer either as a Composer dependency or globally. For more information, see:
https://github.com/squizlabs/PHP_CodeSniffer