Which PHP frameworks are used by corporations?

Question

There are several questions about PHP frameworks, but I\'m curious as to which one(s) are used in the commercial world when developing web applications with PHP. At my first web

Answer 1

Having experience with CI , yiiframework and calephp (not much, really) my opinion is that CI is not flexible as ohter 2, so I do not recommend it on larger-scale projects. Anyone who disagree, just can try a demo project with cakephp and Yii and he will see how things are easier with them as crud,form validation etc. Of course all have their disadvantages :)