The Symfony PHP framework

Dependency Manager for PHP

CakePHP: The Rapid Development Framework for PHP - Official Repository

The DokuWiki Open Source Wiki Engine

A social networking engine in PHP/MySQL

Guzzle, an extensible PHP HTTP client

Laravel is a web application framework with expressive, elegant syntax. We’ve already laid the foundation for your next big idea — freeing you to create without sweating the small things.

Simple Machines Forum — SMF in short — is free and open-source community forum software, delivering professional grade features in a package that allows you to set up your own online community within

Open Source PHP Framework (originally from EllisLab)

The missing Symfony Admin Generator

MODX Revolution - Content Management Framework

A customizable, open-source ecommerce platform built on WordPress. Build any commerce solution you can imagine.

Silverstripe CMS - this is a module for Silverstripe Framework rather than a standalone app. Use https://github.com/silverstripe/silverstripe-installer/ to set this up.

Doctrine Object Relational Mapper (ORM)

A free open source IT asset/license management system

Official repository for Concrete CMS development

Official repository of the AWS SDK for PHP (@awsforphp)

Home of the Joomla! Content Management System

:cloud: ownCloud web server core (Files, DAV, etc.)

MyBB is a free and open source forum software.