title: PHP Error in Codeigniter
body: <blockquote>
  <p>Severity: Warning</p>
  <p>Message: define() expects at least 2 parameters, 1 given</p>
  <p>Filename: controllers/user.php</p>
  <p>Line Number: 1</p>
  </blockquote>
  <p>Backtrace:</p>
  <pre><code>File: C:\xampp\htdocs\CodeIgniter\application\controllers\user.php
  Line: 1
  Function: define
  
  File: C:\xampp\htdocs\CodeIgniter\index.php
  Line: 292
  Function: require_once
  </code></pre>