title: Loading custom config file codeigniter 3
body: <p>I am trying to load a custom config in codeigniter 3</p>
  
  <pre><code>$this-&gt;config-&gt;load('test')
  </code></pre>
  
  <p>test.php file is available in <code>application/config</code> folder with following content.</p>
  
  <pre><code>&lt;?php
  
  $config['item_test']='sample config item';
  </code></pre>
  
  <p>I will get the following error</p>
  
  <blockquote>
    <p>The configuration file test.php does not exist.</p>
  </blockquote>
  
  <p>Codeigniter version:3.1.0</p>