title: How to change the value of a config item in the controller? - Codeigniter
body: <p>I have a config file: <code>application/config/breadcrumbs.php</code></p>
  
  <p>Within the file I have the following configuration item:</p>
  
  <pre><code>$config['hide_number'] = TRUE;
  </code></pre>
  
  <p>How can I change the value of this config item through the controller.</p>
  
  <p>I need to change the value of this config item one time only. How is this done???</p>