Infinum internal coding standards for WordPress
The coding standard of the Doctrine project.
Human Made coding standards for modern code
[READ-ONLY] Tools for automated checks of coding standards in PHP projects. Predefined rulesets included.
Joomla Coding Standards Definition
Slevomat Coding Standard for PHP_CodeSniffer complements Consistence Coding Standard by providing sniffs with additional checks
PHP_CodeSniffer ruleset to enforce WordPress.com VIP and VIP Go coding standards