What is the best ready-made chat in php user to user?

Question

PHP

Hello, share your experience, we need the most convenient chat on php user to user.
Chat will be built into the system with private messages, as an addition (like VKontakte). Plus, you need the ability to attach images.
What do you recommend?
Thanks for the time.

Answer 1

I wrote a chat just on websockets, https://github.com/kryoz/sociochat is partially suitable for this task

Answer 2

You can use Ratchet . This is a socket server for php.