The Core tier provides a solid, independent platform on which to build a web framework or application. It defines a simple architecture that ensures a structured system, and provides basic functionality that is used in the majority of web apps.
It forms the core of the Backend-PHP Framework.
It can be installed from source or using Composer:
composer require backend/core
Core uses Backend-PHP Interfaces, and as this packages uses namespaces, PHP 5.3 is required.