title: Session is getting overwritten in php
body: <p>I am facing a problem that my session is getting overwritten by other logged-in user in php.</p>
  
  <p>when we have a reasonable load of about 50 -100 users sessions start getting mixed up. For instance if a user logins as A after a while his session switches to User B who is also logged in. The system has been in operation for over a year and this is the first time we are facing the problem.</p>
  
  <p>The server is running Centos.</p>
  
  <p>I am not having any code error anywhere but somehow one's data getting overwritten with others. </p>
  
  <p>Please help me because I am trying to solve this error but not success.</p>
  
  <p>Is there is any php ini setting which will overwrite user session data? or
  Is this anything on the server end like session id randomization is not proper ?</p>
  
  <p>Thanks in advance.</p>