# Installation To install Brain Monkey you need: - PHP 5.6+ - [Composer](https://getcomposer.org) Brain Monkey is available on Packagist, so the only thing you need to do is to add it as a dependency for your project. That can be done by running following command in your project folder: ```shell composer require brain/monkey:2.* --dev ``` As alternative you can directly edit your `composer.json` by adding: ```json { "require-dev": { "brain/monkey": "~2.0.0" } } ``` I've used `require-dev` because, being a testing tool, Brain Monkey should **not** be included in production. Brain Monkey can work with any testing framework, so it doesn't require any of them. To run your tests you'll probably need to require a testing framework too, e.g. [PHPUnit](https://phpunit.de/) or [phpspec](https://www.phpspec.net/en/latest/). ## Dependencies Brain Monkey needs 2 libraries to work: - [Mockery](http://docs.mockery.io/en/latest/) (BSD-3-Clause) - [Patchwork](http://patchwork2.org/) (MIT) They will be installed for you by Composer. When installed in development mode (to test itself), Brain Monkey also requires: - [PHPUnit](https://phpunit.de/) (MIT)