/**
* @see \wcf\system\session\ACPSessionFactory::readSessionID()
*/
protected function readSessionID()
{
$sessionID = parent::readSessionID();
// get sessionID from cookie
if (empty($sessionID) && isset($_COOKIE[COOKIE_PREFIX . 'cookieHash'])) {
$sessionID = $_COOKIE[COOKIE_PREFIX . 'cookieHash'];
}
return $sessionID;
}