ensure user is 18 years of age - date valdation.

[eluser]Andy78[/eluser]
I added the return true but its not making any difference. The problem lies in how im feeding valid_date() with the day, month and year variables but i dont no how to do it correctly

Code:

function valid_date()
    {
          $day     = (int)$this->input->post('day');
          $month    = (int)$this->input->post('month');
          $year    = (int)$this->input->post('year');
          
          
          $birthday = mktime(0, 0, 0, $month, $day, $year);
          
        
        if (!checkdate($birthday))
        {
            $this->validation->set_message('valid_date', 'The %s field is invalid.');
            return FALSE;
         }
        
        if ($birthday > strtotime('-18 years')) {
                $this->validation->set_message('valid_date', 'You must be 18 years old to sign up.');
                return false;
          }
            
            
          return TRUE;
    }