What is the best (php framework) or (php engine) to build social network?
We want to build a good social network, and we know php well, but we want to rely on some existing thing.

We have searched for that, and we have seen features for: Elgg, BuddyPress, Anahita..

And features for frameworks: Yii, Zend, CakePhp, Symfony..

But we still wonder which one is the best solution, and we don't use any of them before..

Any advice.
What is the best (php framework) or (php engine) to build social network?
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We want to build a good social network, and we know php well, but we want to rely on some existing thing.

We have searched for that, and we have seen features for: Elgg, BuddyPress, Anahita..

And features for frameworks: Yii, Zend, CakePhp, Symfony..

But we still wonder which one is the best solution, and we don't use any of them before..

Any advice.