title: PHP Session randomly dies when read_and_close is active
body: <p>I am now using php and when i initiate the session i use the read_and_close flag set to true, this because in our system we mostly just do reads. Also i can say that we have functions that uses session_start and session_write_close when we want to add/update or delete data in our read only sessions.</p>
  
  <p>The thing is that it mostly works, but some times (at very random occurs) it's just being destroyed and the user is being signed out.</p>
  
  <p>This happens at any random time, but i can also add that the system mostly works with ajax requests. Removing the read_and_close flag makes the problem disappear.</p>