I've been using Yii, and it's good, but its helper library is lacking. I've been snooping around CakePHP, and it has some some nice helper functions, like timeAgoInWords() and autoLinkEmails().
Is there a php framework or library that stands out as having a crazy good helper library? in particular, for formatting. Plus, what is your favourite function?
Thanks!
I'm a big fan of CodeIgniter as it has a very nice template system included for doing page designs/formating.
Zend Framework has a pretty good one.