title: Codeigniter's session data, are they just cookies?
body: <p>I'm going to use Codeigniter's session data for my login system, but first I wanted to understand them, so I read the user guide, and from what I understand, Codeigniter's session data are <code>just</code> cookies.<br>
  Is this true? which means if the user disables cookies he wont be able to login to any website using   Codeigniter's session data?<br>
   quoted:  </p>
  
  <p><code>The Session class stores session information for each user as serialized (and optionally encrypted) data in a cookie</code><br>
  So that means I should create my own native PHP session data to make users who disable cookies able to login my website? or Codeigniter's session data are <code>not</code> just cookies?</p>