Form validation callback array

[eluser]veledrom[/eluser]
Hi,

I want to third parameter to callback function but am failing to do so.

Please help.

Thanks

This works fine:

Code:

$this->form_validation->set_rules('travel_date_from', 'From', 'trim|required|exact_length[10]|callback_compare_travel_dates[' . $this->input->post('travel_date_until') . ']');

public function compare_travel_dates($from_travel_date, $until_travel_date)
{
   //Do whatever you want
}

I want to do this now but cannot set $this->form_validation->set_rules part:

Code:

public function compare_travel_dates($from_travel_date, $until_travel_date, $earliest_date)
{
   //Do whatever you want
}