Node.js vs PHP?

Hi,

I'm now checking node.js as an oportunity to create webapps with my clients, but I have this doubts that I need to solve:
-Is node.js faster than PHP, ruby or Python? (I've already seen some performance benchmarks between these three, but i only want to confirm it).

-How about security? I've heard that there are some security problems with the sockets and the protocols that node.js uses

-Is there any good framework for node?

-Does Laravell, CodeIgniter or any other PHP framework can be a better option than node.js?

-Is there good support in hosting servers for it?

Any other comments of this topic are welcome.

Regards!