RWMB_Datetime_Field::html PHP Метод

    public static function html($meta, $field)
    {
        $output = '';
        if ($field['timestamp']) {
            $name = $field['field_name'];
            $field = wp_parse_args(array('field_name' => $name . '[formatted]'), $field);
            $output .= sprintf('<input type="hidden" name="%s" class="rwmb-datetime-timestamp" value="%s">', esc_attr($name . '[timestamp]'), isset($meta['timestamp']) ? intval($meta['timestamp']) : '');
            $meta = isset($meta['formatted']) ? $meta['formatted'] : '';
        }
        $output .= parent::html($meta, $field);
        if ($field['inline']) {
            $output .= '<div class="rwmb-datetime-inline"></div>';
        }
        return $output;
    }