CakePHP is a rapid development framework for PHP that provides an extensible architecture for developing, maintaining, and deploying applications. (MIT)
Cross-platform
CodeIgniter is an open source Web Application Framework that helps you write kick-ass PHP programs. (OSL)
Cross-platform
Emvicy is a PHP framework for running on Linux, with which great things can be realized. Be it frontends, backends, APIs or a mix of all. (GPL)
Cross-platform
FuelPHP is a simple, flexible, community driven PHP 5.3+ framework, based on the best ideas of other frameworks, with a fresh start! (MIT)
Cross-platform
Kohana is an open source, object oriented MVC web framework built using PHP5 by a team of volunteers that aims to be swift, secure, and small. (BSD)
Cross-platform
Laravel is a clean and classy framework for PHP web development. Freeing you from spaghetti code, Laravel helps you create wonderful applications using simple, expressive syntax. (MIT)
Cross-platform
Mysqly is a full-featured opensource small-overhead PHP data framework for Mysql built for fast and efficient development. It's PDO based, has native SQL support and supports lazy loading of the connection. (MIT)
Cross-platform
Nette Framework lets you focus on the creative part of being a developer. It's built to be extremely usable, friendly and a joy to use. It supports AJAX, DRY, KISS, MVC and code reusability. (BSD)
Cross-platform
Phalcon is an open source, full stack framework for PHP 5 written as a C-extension, optimized for high performance. Phalcon is not only about performance, our goal is to make it robust, rich in features and easy to use! (BSD)
Cross-platform
Symfony is a web application framework for PHP projects. It aims to speed up the creation and maintenance of web applications, and to replace the repetitive coding tasks by power, control and pleasure. (MIT)
Cross-platform
TYPO3 CMS is an Open Source Enterprise Content Management System with a large global community, backed by the approximately 900 members of the TYPO3 Association. (GPL)
Cross-platform
Yii is a high-performance PHP framework best for developing Web 2.0 applications. Yii helps Web developers build complex applications and deliver them on-time. (BSD)
Cross-platform
Zend Framework is an open source, object-oriented web application framework implemented in PHP 5 and licensed under the New BSD License. (BSD)
Cross-platform
13 applications