function getOpenCartSetting($key, $store_id = 0)
{
$db = NitroDb::getInstance();
nitroEnableSession();
$store_id = $store_id == 0 && !empty($GLOBALS['nitro.store_id']) ? (int) $GLOBALS['nitro.store_id'] : $store_id;
$query = $db->query("SELECT value FROM " . DB_PREFIX . "setting WHERE `key`='" . $key . "' AND store_id='" . $store_id . "' LIMIT 1");
if ($query->num_rows) {
$result = $query->row;
if (!empty($result['value'])) {
return $result['value'];
}
}
return null;
}
function serveBrowserCacheHeadersIfNecessary($filemtime)
{
if (headers_sent()) {
return;
}
nitroEnableSession();
if (!empty($_SESSION['NitroSwitchLanguage'])) {
unset($_SESSION['NitroSwitchLanguage']);
return;
}
header('Nitro-Cache: Enabled');
$userAgent = !empty($_SERVER['HTTP_USER_AGENT']) ? $_SERVER['HTTP_USER_AGENT'] : 'FOOBAR';
$isIE = stripos($userAgent, 'MSIE ') !== false;
$code304 = false;
if (getNitroPersistence('BrowserCache.Headers.Pages.CacheControl') && !$isIE) {
header('Cache-Control:public, max-age=31536000');
}
if (getNitroPersistence('BrowserCache.Headers.Pages.Expires')) {
header('Expires: ' . gmdate('D, d M Y H:i:s \\G\\M\\T', time() + getPageCacheTime()));
$code304 = true;
}
if (getNitroPersistence('BrowserCache.Headers.Pages.LastModified')) {
header('Last-Modified: ' . gmdate('D, d M Y H:i:s \\G\\M\\T', $filemtime));
$code304 = true;
}
if ($code304 && !empty($_SERVER['HTTP_IF_MODIFIED_SINCE']) && strtotime($_SERVER['HTTP_IF_MODIFIED_SINCE']) >= $filemtime) {
header('HTTP/1.1 304 Not Modified');
exit;
}
}
