title: how to create a secure php login system, allowing for "keep me logged in" functionality?
body: <p>I use a simple login system based on SESSION vars. Once the user logs in, a session var is set that tells my script the user is to be accepted in. I don't use any custom clientside cookie var.</p>
  
  <p>I would like to offer the option on the login screen that says "keep me loggued in the whole day". How does one do that in a secure way?</p>