title: Should I use CodeIgniter html or form helper class?
body: <p>Is it good for performance or security issue to use those class as we know that HTML should be in plain HTML.<br>
  e.g.</p>
  
  <pre><code>&lt;input type='text' .... /&gt;
  </code></pre>
  
  <p>is better than</p>
  
  <pre><code>&lt;?php
  echo '&lt;input type="text" .... /&gt;';
  ?&gt;
  </code></pre>
  
  <p>Then why should we use </p>
  
  <pre><code>echo form_input('username');
  </code></pre>