<form method="get">
 
<?php $fh = Loader::helper('form'); ?>
 
Country: 
<?php echo $fh->select('country', $countries, 'GB'); ?>
 
<br/><br/>
 
State: 
<?php echo $fh->select('stateDropdown', $states, 'IL'); ?>
 
<input type="text" id="stateTextbox" name="stateTextbox" style="display:none;" />
 
<script>
    $(document).ready(function(){
        $('#country').change(function(){
            $.ajax({
                url: '<?php echo $this->action('get_states'); ?>',
                type: 'GET',
                data: { country: $(this).val() },
                success: function(data){
                    var states = $.parseJSON(data);
                    var stateDropdown = $('#stateDropdown');
                    var stateTextbox = $('#stateTextbox');
                    if(states == null){
                        stateTextbox.show();
                        stateDropdown.hide();
                    }
                    else{
                        stateTextbox.hide();
                        stateDropdown.show()
                            .find('option')
                            .remove();
 
                        $.each(states, function(key, value){
                            var option = $('<option></option>')
                                            .text(value)
                                            .val(key);
                            stateDropdown.append(option);
                        });
                    }
                }
            });
        });
 
    });
</script>
 
<br /><br />
 
<button type="submit" class="btn ccm-input-submit">Search</button>
 
</form>

<?php
class StateFilterController extends Controller{
 
 
    public function on_start(){
        $this->stateHelper = Loader::helper('lists/states_provinces');
        $this->countryHelper = Loader::helper('lists/countries');
    }
 
    public function get_states(){
        $country = $this->get('country');
        if(!empty($country)){
            $states = $this->stateHelper->getStateProvinceArray($country);
            echo json_encode($states);
        }
        exit;
    }
 
 
 
    public function view(){
      $search_country_posted = $_GET["country"];
 
      if (!$search_country_posted){$search_country_posted ='GB';}
 
        $this->set('countries', $this->countryHelper->getCountries());
        $this->set('states', $this->stateHelper->getStateProvinceArray($search_country_posted));
    }
}

 
public function select($key, $optionValues, $valueOrArray = false, $miscFields = array()) {
      $val = $this->getRequestValue($key);
      if (is_array($val)) {
         $valueOrArray = $val[0];
      }
 
      if ((strpos($key, '[]') + 2) == strlen($key)) {
         $_key = substr($key, 0, strpos($key, '[]'));
         $id = $_key . $this->selectIndex;
      } else {
         $_key = $key;
         $id = $key;
      }
 
      if (is_array($valueOrArray)) {
         $miscFields = $valueOrArray;
      } else {
         $miscFields['ccm-passed-value'] = $valueOrArray;   
      }
 
      $str = '<select name="' . $key . '" id="' . $id . '" ' . $this->parseMiscFields('ccm-input-select', $miscFields) . '>';
 
      foreach($optionValues as $k => $value) {
         $selected = "";
         if ((string)$valueOrArray === (string)$k  && !isset($_REQUEST[$_key]) || ($val !== false && $val == $k) || (is_array($_REQUEST[$_key]) && (in_array($k, $_REQUEST[$_key])))) {
            $selected = 'selected="selected"';
         }
         $str .= '<option value="' . $k . '" ' . $selected . '>' . $value . '</option>';
      }
 
      $this->selectIndex++;
 
      $str .= '</select>';
      return $str;
   }

 
protected function getCustomSortedCountries(array $firstCountryCodes)
{
   // array containing all countries
    $allCountries = $this->countryHelper->getCountries();
    $firstCountries = array();
 
    foreach($firstCountryCodes as $countryCode)
    {
        $firstCountries[$countryCode] = $allCountries[$countryCode];
    }
 
    // remove the countries in the first array so they aren't duplicated
    $allCountries = array_diff_key($allCountries, $firstCountries);
 
    // append $allCountries to $firstCountries and return
    return array_merge($firstCountries, $allCountries);
}
 
public function view() 
{
  $search_country_posted = $_GET["country"];
 
  if (!$search_country_posted){$search_country_posted ='GB';}
 
     // pass in an array of country codes you want to appear at the top of the list
    $this->set('countries', $this->getCustomSortedCountries(array('US', 'GB')));
 
    $statesForCountry = $this->stateHelper->getStateProvinceArray($search_country_posted);
    $this->set('states', empty($statesForCountry) ? array() : $statesForCountry);
}