Views within other views are called Nested views.
There are two ways of including nested views in CodeIgniter:
1. Load a nested view inside the controller
Load the view in advance and pass to the other view. First put this in the controller:
<?php
// the "TRUE" argument tells it to return the content, rather than display it immediately
$data['menu'] = $this->load->view('menu', NULL, TRUE);
$this->load->view ('home', $data);
?>
Then put <?=$menu?>
in your view at the point you want the menu to appear.
2. Load a view “from within” a view
First put this in the controller:
<?php
$this->load->view('home');
?>
Then put this in the /application/views/home.php
view:
<?php $this->view('menu'); ?>
<p>Other home content...</p>
About best method, I prefer the 1st method over 2nd one, because by using 1st method I don’t have to mix up code, it is not like include php. Although indirectly both are same, the 1st method is clearer & cleaner than 2nd one!