I’d been looking for best PHP Framework about 6 months ago !! read a lot of comparison charts, downloaded CakePHP & CodeIgniter and tried both of them.
Finally I found the CodeIgniter should be the best PHP framework although it’s not the ALL-IN-ONE framework, but it’s easy to custom / use / integrate, it has a GREAT documentation, so nice community & Finally 2+ Books.
for more information here are some resources :