private static function delete_grouped_option($group, $names)
{
$options = get_option(self::$grouped_options[$group], array());
$to_delete = array_intersect($names, self::get_option_names($group), array_keys($options));
if ($to_delete) {
foreach ($to_delete as $name) {
unset($options[$name]);
}
return update_option(self::$grouped_options[$group], $options);
}
return true;
}