Slender Slim, but with a bit more meat.

Slender is lightweight PHP (>=5.4) framework for rapid application development

Built on top of the excellent Slim micro-framework, Slender provides a toolkit for quickly putting together a modular PHP application.

Features

Configuration Manager

Configure your application using config files in the format you prefer. Currently supporting YAML,JSON and PHP Arrays, config files are merged as they are loaded so overloading or extending settings is a doddle.

Module System

Organise your code into modules to group features, functionality or just to keep things tidy. Slender Modules are as easy as writing 3 lines in a text file.