HTTPS Version of $_SERVER['HTTP_X_FORWARDED_FOR'] PHP

问题

Does anyone know if there is a HTTPS 'version' of $_SERVER['HTTP_X_FORWARDED_FOR'] therefore I can resolve https proxies? If not, does anyone know a way to resolve the actual IP of HTTPS proxy user in PHP?

来源：https://stackoverflow.com/questions/45869956/https-version-of-serverhttp-x-forwarded-for-php