I made a big list of PHP5.3-only frameworks. I looked at a lot of source code (because it’s the best documentation) and I’m not sure I like any of them.
A rewrite of the original Symfony.
Developed for an upcoming PHP5.3-only version of the TYPO3 CMS.
A framework from the former lead developer of CakePHP.
Written for PHP5.3 from the ground-up. Provides routes, controllers, templates, an ORM and a multitude of pluggable components.
Provides routes, controllers, views, layouts, forms, sessions and more. No models.
Full-featured MVC. Contains an implementation of Facebook’s BigPipe.
Full-featured MVC framework. Various utility/helper modules.
Full-featured, nice documentation.
No documentation in English yet.
Provides models, views, controllers, templates, authentication, sessions, forms and more.
Small Hierarchical MVC framework. Provides, routes, views, controllers, autoloading, sessions, HTTP client.
A minimal framework in under 30kb. Provides routes, events, registry and autoloading.
Tiny RESTful framework with URLs treated as resources. A resource can have multiple representations (pretty much views).
Tiny MVC framework. Provides routes, controllers and views with pure PHP templates.
Tiny and loose MVC framework. Provides routes and controllers.
Hierarchical MVC without ORM, templating, caching.
A PHP framework with class loading, inversion of control, MVC and more.
A lightweight PHP library of classes that utilizes latest and greatest features of PHP-5.3: namespaces, late-static-binding, lambda-functions and closures.
An application framework. Core modules include user management (login/registration), content management and administration panel.
Loosely-coupled libraries for authentication/authorization, threading, IPC (inter-process communication), database abstraction, workflows, templating and web services.
A simple MVC framework.
Object oriented MVC application framework. Provides CRUD, routing, database abstraction, validation and more.
Provides a simple ORM, broker-style HMVC, DOM generation/alteration as well as some standard utility classes. There is also a growing set of Windows Server COM classes most notably surrounding Windows Task Scheduler and Azure.
Brings together Zend Framework, ezComponents, Smarty, jQuery, jQuery UI and PHP 5.3.