0) { header("Cache-Control: max-age=" . MAX_AGE); header("Pragma:"); } else { header("Cache-Control: no-cache, max-age=0, must-revalidate"); } header("Expires: " . gmdate('D, d M Y H:i:s', time() + MAX_AGE) . ' GMT'); header("Last-modified: " . gmdate('D, d M Y H:i:s', strtotime(LAST_MODIFIED)) . ' GMT'); header('Content-Type: '.CONTENT_TYPE); if(isset($_SERVER['HTTP_IF_MODIFIED_SINCE'])) { if(strtotime($_SERVER['HTTP_IF_MODIFIED_SINCE']) >= strtotime(LAST_MODIFIED)) { header("Last-modified: " . gmdate('D, d M Y H:i:s', strtotime(LAST_MODIFIED)) . ' GMT', true, 304); exit; } } ?> **CONTENT**