How to choose The Best PHP Framework?

[annyphp]

Hello,programmer.
PHP Framework is built for PHP developers who need elegant toolkit to create full-featured web applications. It aims to speed up the creation and maintenance, and also to replace the repetitive coding tasks by power, control and pleasure.
I have found some php framework such as:Zend Framework
CodeIngter framework
YiiFramwork
Symfony Framework
Any one can tell me which one is best?
Thank you!

[cloder]

For all frameworks i recommend to use free PHP IDE Codelobster PHP Edition with special plug-ins for installation, autocomplete, context help and etc.