How To Retrieve Form Validation errors?

[eluser]pickupman[/eluser]
a. Yes, that's the advantage of using json to respond. You can return arrays. You will just need to loop through the json array to append a validation error to a field.

b. Don't get yourself to confused with MVC/CI and jQuery. It would work the same way in just php. It just MVC/CI provides a structure to your code.