title: How to share php sessions across multiple servers using memcached of same domain
body: <p>I have three servers for single domain</p>
  
  <p>I'm using nginx as loadbalancer.</p>
  
  <p>I want to share php sessions across these servers.</p>
  
  <p>My application is heavily dependent on session. storing sessions in files is bad idea. i'm using memcached for this.</p>
  
  <p>how exactly and efficiently should i configure memcached to read and write sessions and share between servers quickly.</p>
  
  <p>or any other good alternative suggestion.</p>