Which PHP framework do you use? and why?

We use Yii in our company for big big big projects we think Yii is the best , just becuse of customization/ configrations and of course the performance So Yes it is :)

I use yii framework because It has Clean, simple design pattern using effective conventions without limiting customization Ability to easily integrate3rd party libraries Reduce/automate non-propriety coding Performance OO clarity Good feature coverage (core and for our core services Built-in test structures

I prefer those framework :

Symfony2 , Laravel , Yii

Yii framework, because it's fast, ease of maintain, secured, etc..

I use yii framework because its simple , easy to use and helps in rapid application development, reduced coding, performance, follows MCV pattern, Lots of core features and testing functionalities

I am using ZEND framework... I think it is strong framework as we know if you want to be certified in PHP you will take it from Zend...