How to Display Error Message in CodeIgniter

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. First approach: To do this, add the following in your Controller: err_message will become a variable once it is passed into your View called "bookings". In your booking view, add the following code: Second approach: We will use set_flashdata function to display the error message when the page is being redirected. In your bookings page, add the following code: flashdata is different on the first approach since it will only display the error when it was redirected from other page.