In this tutorial, I will explain on how to you can display error messages using CodeIgniter into your View from a Controller.
There are two kinds of approach of doing this. First, passing the data directly from Controller to View. Second, using flashdata.
This code is useful, for example, if you have a shopping cart application. Say you want to display an error message telling your visitor that the cart is empty.
To do this, add the following in your Controller:
$this->data['err_message']='Your cart is empty!';