title: Call to undefined function, changes on helper.php file but still cant call presentPrice function
body: <p>in my view file I try to add this code, but cant call the function name '<strong>present price</strong>' </p>
  
  <pre><code>&lt;table&gt;
     &lt;tr&gt;
      &lt;td&gt;RM {{presentPrice(session()-&gt;get('coupon')['name'])}}&lt;/td&gt;
     &lt;/tr&gt;
   &lt;/table&gt;
  </code></pre>
  
  <p>this function I add it into the app/helper path</p>
  
  <pre><code>&lt;?php
     class helpers{
      function presentPrice($price)
     {
      return money_format('$%i', $price / 100);
     }
  }
  </code></pre>
  
  <p>of course I have to run composer dump-autoload. But it still show me undefined function</p>