Via this post on Adam Trachtenberg's blog today, there's a pointer to a framework (alternative to Zend?) written in/for PHP5 - symfony.

Symfony is a web application framework for PHP5 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.

The very small number of prerequisites make symfony easy to install on any configuration; you just need Unix or Windows with a web server and PHP 5 installed. It is compatible with almost every database system. In addition, it has a very small overhead, so the benefits of the framework don't come at the cost of an increase of hosting costs.

It targets those already familiar with design patterns with a focus on agile development. There's a whole crop of buzzwords on their "About" page, but it does have one very good thing going for it - some very complete documentation - a must if you want something like a framework to survive...