title: Custom helper is not working in codeigniter v3
body: <p>I create two helper files in helper folder. But when I trying to include both helper I am getting error. </p>
  
  <blockquote>
    <p>Unable to load the requested file: helpers/web_helper.php</p>
  </blockquote>
  
  <p><strong>MY_array_helper.php</strong></p>
  
  <pre><code>&lt;?php
  
  function print_pre($array= array()){
      echo "&lt;pre&gt;";
      print_r($array);
      echo "&lt;/pre&gt;";
  }
  </code></pre>
  
  <p><strong>MY_web_helper.php</strong></p>
  
  <pre><code>&lt;?php
  
  function test(){
      echo "working";
  
  }
  </code></pre>
  
  <p><strong>Welcome.php</strong></p>
  
  <pre><code>&lt;?php
  defined('BASEPATH') OR exit('No direct script access allowed');
  
  
  
  class Welcome extends CI_Controller {
  
      public function __construct(){
          parent::__construct();
          $this-&gt;load-&gt;helper('array_helper');
          $this-&gt;load-&gt;helper('web_helper');
      }
  </code></pre>