title: What hash do PHP sessions use when storing an id?
body: <p>What is the algorithm.  I would like to use the same algorithm to manually create my own session_ids which I want to store locally as well.</p>
  
  <p>I realize I could create it server side ( using session functions ) and send it...but I just prefer to hash / encode it myself...+ I want the option to increase the complexity to my liking...fiddle with it etc.</p>
  
  <p>Related:
  <a href="https://stackoverflow.com/questions/10835592/how-are-client-side-session-ids-protected">1</a></p>
  
  <p>Thanks.</p>