This a basic pre-commit hook for Git running PHP_CodeSniffer on newly committed changes and offering to fix violations automatically when possible.
Download the pre-commit file and put it under .git/hooks at the root of your project.
Make sure it is executable:
$ chmod +x pre-commit
Install PHP_CodeSniffer following one of the suggested methods.
I personally like to install it for the projects that need it only, as a Composer dependency:
$ composer require --dev squizlabs/php_codesniffer
The default standard is PSR-12, but you can change it by updating the STANDARD variable at the top of the file.
Likewise, the script assumes that PHP_CodeSniffer's bin folder is at the same level as the .git folder by default, but you can set a different location by updating the BIN variable.
For other standards and options, please visit the usage page.
While this repository is not intended to grow, PRs are welcome, especially since my Bash-fu isn't very strong.