Hamcrest is a matching library originally written for Java, but subsequently ported to many other languages.

php-hamcrest is the official PHP port of Hamcrest and essentially follows a literal translation of the original Java API for Hamcrest, with a few Exceptions, mostly down to PHP language barriers.

To use this library, you just have to add, in your project:

require_once '/usr/share/php/Hamcrest/autoload.php';