[Serg_pnz]

Попробуйте такой набор для антикеша

Header("Last-Modified: ".gmdate("D, d M Y H:i:s", strtotime("-1 day"))." GMT");
	Header("Content-Type: text/html; charset=utf-8");
	if (!empty($_SERVER['SERVER_SOFTWARE']) && strstr($_SERVER['SERVER_SOFTWARE'], 'Apache/2')) {
		Header("Cache-Control: no-cache, pre-check=0, post-check=0");
	} else {
		Header("Cache-Control: private, pre-check=0, post-check=0, max-age=0");
	}
  Header("Expires: 0");
  Header("Pragma: no-cache");