Problem with passing values to bootstrap modal window

The action of your form clearly points to a method named quotation, but the name of the method in your controller is fetch_by_id. So unless you have some magic routing that we're not aware of, that's your problem.

@skunkbad please check again, i have forgot to include the ajax

You must specify a content-type header for JSON:

PHP Code:

header('Content-Type: application/json'); 


No Luck still facing the empty fields