Phalcon\Http\Client\Provider\Stream::setProxy PHP Метод

    public function setProxy($host, $port = 8080, $user = null, $pass = null)
    {
        $uri = new Uri(['scheme' => 'tcp', 'host' => $host, 'port' => $port]);
        if (!empty($user)) {
            $uri->user = $user;
            if (!empty($pass)) {
                $uri->pass = $pass;
            }
        }
        $this->setOption('proxy', $uri->build());
    }