title: Same domain, different folder PHP session
body: <p>I want to set a different session ID depending on what folder a user is in.</p>
  
  <p>For example, I have the domain <a href="https://example.com" rel="nofollow">https://example.com</a> which has the folders /app1, /app2, etc. and then multiple files inside each app folder. I would like to set one session ID to be used with all files in app1 and a different session ID to be used in app2.</p>
  
  <p>Can this be done?</p>