Dave Marshall has pointed out a site he's developed that Zend Framework developers out there might find handy - ZF Snippets.

I thought [the djangosnippets.org site] was pretty cool, and realised we didn't have a one stop shop for Zend Framework code snippets. Symfony and CakePHP also have dedicated sites for this. [...] I thought it'd be another good learning opportunity to build my own with the Zend Framework, for the Zend Framework.

The site makes use of several of the Zend Framework components and has already been populated with a few examples to get things started. He has plans for its future including full searching, version history for each snippet, user collaboration and a scoring/ranking system for the quality of the snippet.