Ajax data from controller

Based on your code above, I can't see why you need to refresh the page. It looks for a post value, and then echos the data back to your AJAX. Do you get an error message or what? Why do you need to press F5?

1. Some libraries use a JavaScript template that they append the returned json into. And replacing the whole #container
2. Or you can just do like you said. Append it to existing html elements. #firstName #lastName...
3. Or return generated html based on a CI view. (I'm doing this in a project)

Here's an example I wrote earlier regarding submitting and returning pure json (step 2) or formatted html (step 3).
You need to add the replacing code yourself ("success").
https://forum.codeigniter.com/thread-703...#pid352422