Rather than installing PHP on your machine, this provides a php scripts which executes PHP inside a docker image. You should be able to use it as you are used to.

This is a homesick castle, if you are familiar with it you just need to clone and ensure $HOME/bin is in your $PATH.

If you have no clue what a castle is, it is also easy:

$ curl -sL https://raw.githubusercontent.com/augustohp/carcassonne-docker-php/master/home/bin/php -o /usr/local/bin/php
$ chmod a+x /usr/local/bin/php

You can change /usr/local/bin/php to anything you want, the /usr/local/bin should be in you $PATH and php is how you are going to call the command.