Tdt\Core\Formatters\KMLFormatter::getExtendedDataElement PHP Метод

    private static function getExtendedDataElement($values)
    {
        $result = "<ExtendedData>";
        $ignore = ['parts', 'points', 'point'];
        foreach ($values as $key => $val) {
            if (!in_array($key, $ignore)) {
                $result .= '<Data name="' . $key . '">';
                $result .= '<displayName>' . $key . '</displayName>';
                $result .= '<value>' . $val . '</value>';
                $result .= '</Data>';
            }
        }
        $result .= "</ExtendedData>";
        return $result;
    }