title: Pubnub multiuser chat
body: <p>I am developing a multi-user chatting system in php.
  I know about push and pull, reverse ajax, comet etc. but mostly we have to configure over our server.</p>
  
  <p>However, I can't access my server to install those scripts because I have shared hosting provider.</p>
  
  <p>So after some research I came to know that <strong>pusher</strong>, <strong>pubnub</strong> provides api to have push data on browser.</p>
  
  <p>The question is about <strong>pubnub</strong>, that they are providing channels to send data to clients, but problem is I want to develop multi-user chat in which the data will sent to only one user  not like multicasting chat.</p>
  
  <p>As I think one solution is that to make a unique channel per user, so that data will only sent to that user, but this doesn't seems to be efficient. so any other way to implement multi-user chat system with <strong>pubnub</strong> ?</p>
  
  <p>or any other suggestions that are better ?</p>