codeigniter中向视图中动态添加数据

1.
$data = array(
'title' => 'My Title',
'heading' => 'My Heading',
'message' => 'My Message');
$this->load->view('blogview', $data);

2.
<?phpclass Blog extends CI_Controller {

public function index()
{
$data['title'] = "My Real Title";
$data['heading'] = "My Real Heading";

$this->load->view('blogview', $data);
}
}