Ajax drop down for Country State & City in Codeigniter?

Question

I am making country state and city drop down with the help of ajax in our codeigniter frame work .

The structure of database given bellow.

Country

Answer 1

function get_cities($Country){
  $this->load->model('city_model');
  header('Content-Type: application/x-json; charset=utf-8');
  echo(json_encode($this->cities_model->get_cities($dealCountry)));
}

In this function, you put incorrect variable name $dealCountry.