Docker image for PHP Compatibility Coding Standard with PHP CodeSniffer

Cf. https://github.com/PHPCompatibility/PHPCompatibility

How to use it

docker run --rm -it --init -v "$PWD:$PWD" -w "$PWD" tophfr/phpcompatibility -p .

or

docker run --rm -it --init -v "$PWD:$PWD" -w "$PWD" tophfr/phpcompatibility -p --runtime-set testVersion 7.3 .