What is use of ci_session in Codeigniter?
<p>As all you know in codeigniter we are using ci_session by two different ways. One is database and another one is files. In both we are storing id, ip_address, timestamp and data.</p>

<p>Please see the screenshot</p>

<p><a href="https://i.stack.imgur.com/cWTC7.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/cWTC7.png" alt="screenshot"></a></p>

<p>I would like to know two questions.</p>

<ol>
<li>What is the use of ci_session?</li>
<li>What is the use of fields id, ip_address, timestamp and data?</li>
</ol>

<p>Please explain this. It will be helpful. Thanks in advance.</p>