'image/x-icon', 'jpg' => 'image/jpeg', 'png' => 'image/png', 'gif' => 'image/gif', 'js' => 'text/javascript', 'css' => 'text/css', 'swf' => 'application/x-shockwave-flash' ]; if (!isset($aType[$sType])) die('No mime type found for ' . $sType); //$sLastModified = gmdate('r', $iLastModified); $sLastModified = gmdate('D, d M Y H:i:s', $iLastModified) . ' GMT'; if (isset($_SERVER['HTTP_IF_MODIFIED_SINCE'])) { if ($_SERVER['HTTP_IF_MODIFIED_SINCE'] == $sLastModified) { header('HTTP/1.1 304 Not Modified'); exit; } } session_cache_limiter(false); //header('Expires: ' . gmdate('r', $iLastModified + $iSecondsToCache)); header('Expires: ' . gmdate('D, d M Y H:i:s', $iLastModified + $iSecondsToCache) . ' GMT'); header('Cache-Control: public'); header('Last-Modified: ' . $sLastModified); header('Content-Type: ' . $aType[$sType]); } date_default_timezone_set('Europe/Berlin'); $iLastModified = strtotime('2011-04-25 07:08:09'); $iSecondsToCache = 48 60 60; sendHeader('jpg', $iLastModified, $iSecondsToCache); sendHeader('js', $iLastModified, $iSecondsToCache); sendHeader('css', $iLastModified, $iSecondsToCache); sendHeader('png', $iLastModified, $iSecondsToCache); ?>