PHP Coding Standard for Arus Team Installation composer require arus/php-coding-standard How to use? <?xml version="1.0"?> <ruleset name="Arus Coding Standard"> <rule ref="./vendor/arus/php-coding-standard/ruleset.xml"/> <file>src</file> <file>tests</file> </ruleset> Useful links https://www.php-fig.org/psr/psr-1/ https://www.php-fig.org/psr/psr-2/