If you’re either a new PHP developer, or just new to using PHP Frameworks, the good people at KillerPHP have a great series of screen-cast tutorials to get you started.
I’ve so far watched those last two and they’re very well done. Clear, simple examples that are enough to get you thinking in MVC (Model-View-Controller) terms, at least.
I’ve never used Zend Framework. I have used Code Igniter and was delighted at how fast and easy it made PHP development, once I got my head wrapped around the concept. It looks to me like jumping to Zend would be pretty easy at least conceptually, but I don’t know if there’s any way to shortcut the learning curve of what each framework makes available.
Compare the Zend MVC vids to the Code Igniter video tutorials by Derek Jones and you’ll see what I mean.