title: Increase session timeout in PHP
body: <p>I am setting up a online test platform using php. The problem is with the longer tests having a time of over 60 minutes. In my system a user logs in and takes the tests. Often when the user submits the test answer, he finds that he has been logged out.</p>
  
  <p>It seems that the session id is being destroyed due to idle systems of the users. How to attend the issue?</p>
  
  <p>I do not want to send the variables to garbage after this time, rather I want to make sure that they are not sent to garbage within this time.</p>