title: Use of session.use_cookies in php
body: <p>I have searched around to find the impact on php session if I change the value of <code>session.use_cookies</code> to <code>true</code> or <code>false</code> but there seems to be no impact on how it works.</p>
  
  <p>What is the use of <code>session.use_cookies</code> in php and why it is required?</p>