Open Source PHP Framework (originally from EllisLab)

Mockery is a simple yet flexible PHP mock object framework for use in unit testing with PHPUnit, PHPSpec or any other testing framework. Its core goal is to offer a test double framework with a suc…

XHProf is a function-level hierarchical profiler for PHP and has a simple HTML based user interface.

Portable and performant UTF-8, Unicode and Grapheme Clusters for PHP

getsparks.org - The CodeIgniter Package Managment Repository

[ABANDONED] An open source forum built on the CodeIgniter php framework.

Livesearch plugin for ExpressionEngine

Github Plugin for ExpressionEngine

Native PHP implementation of json_decode for systems running PHP < 5.2

EllisLab's Open Source PHP Framework