sending json using $this->output-set_output()

[eluser]CodeIgniteMe[/eluser]
I think this is enough on the back-end
(encodes PHP objects and arrays into JSON format)

Code:

echo json_encode($response);

and on the front-end/javascript
(ajax call for the URL and convert the response into JSON object. shorthand for $.ajax)

Code:

$.getJSON(URL, function(data){
alert(data);
});