salam kenal

ane baru belajar nieh

anekan baca ebook
terus di suruh
bikin
<?php
class Hello extends controller
{
function index()
{
$this->load->view('helloview');
}
}?
>

tapi kok malah muncul


Fatal error: Class 'controller' not found in C:\xampp\htdocs\ci\application\controllers\hello.php on line 3