The initial few classes of this collection were produced while trying to independently solve WordPress oldest ticket. This collection started being PHP 5.2.4+ compatible because that is a WordPress requirement.
I'm going to add here some (rewritten) classes I developed along the years, so I'll probably boost the PHP version up...
$ cd
$ git clone https://github.com/aercolino/ando-php
$ cd ando-php
$ composer install
$ ./vendor/bin/phpunit