Here are some of the Top PHP5 Frameworks and PHP5-Ajax Frameworks that is around the Net. Almost all of them are GPL/Open Source.
- CakePHP Framework
CakePHP is a rapid development framework for PHP that provides an extensible architecture for developing, maintaining, and deploying applications. Using commonly known design patterns like MVC and ORM within the convention over configuration paradigm, CakePHP reduces development costs and helps developers write less code.
- PRADO PHP Framework
PRADO is a component-based and event-driven programming framework for developing Web applications in PHP 5. PRADO stands for PHP Rapid Application Development Object-oriented
- Avesta – Zend-based PHP5 web framework
Avesta is a rapid development PHP5 framework built on top of the Zend Framework libraries that emphasizes strict MVC separation and development speed
- BlueShoes php application framework and php cms
BlueShoes is a comprehensive application framework and content management system. It is written in the widely used web-scripting language PHP.
Zephyr is an MVC (model-view-controller) framework and supports complete separation of business logic layer from presentation layer. It is built using popular and tested libraries in backend
AModules3 is the whole new concept to fully use potential of PHP5. Having conceptually proper MVC implementation, support for multiple APIs and fully OOP design makes it very good choice for writing serious applications
- Akelos PHP Framework
The Akelos Framework is Akelos is a PHP4 and PHP5 port of Ruby on Rails Web Development Framework
- symfony – open-source PHP5 web framework
Based on the best practices of web development, thoroughly tried on several active websites, symfony aims to speed up the creation and maintenance of web applications, and to replace the repetitive coding tasks by power, control and pleasure.
PHITE is a simple but powerful site framework written in PHP
- Carthag applications platform
Carthag’s main purpose is to bring PHP at the Enterprise level. This is achieved by using new PHP 5 OOP features, adopting Design Patterns and bringing some other platforms ideas (in particular Java) to Carthag.
- Solar Framework for PHP 5
The Simple Object Library and Application Repository (SOLAR) is a library-like framework organized in a fashion similar to PEAR and Horde, and is PHP5
tppAJAX is a lightweight, yet feature-rich PHP and Ajax toolkit that is compatible with PHP versions 4 and 5
More AJAX PHP Listing at Ajaxpatterns.org