echo '<a href="' . $_SERVER['REQUEST_URI'] . (!empty($_SERVER['QUERY_STRING']) ? '?' .
$_SERVER['QUERY_STRING'] . '&' : '?') . 'rand=' . rand(1111111, 99999999) . '">Обновить</a>'; echo '<a href="' . $_SERVER['REQUEST_URI'] . (!empty($_SERVER['QUERY_STRING']) ? '?' .
$_SERVER['QUERY_STRING'] . '&' : '?') . 'rand=' . rand(1111111, 99999999) . '">Обновить</a>';