Aerys\Server::clear PHP Method

    private function clear(Client $client)
    {
        $client->requestParser = null;
        // break cyclic reference
        $client->onWriteDrain = null;
        \Amp\cancel($client->readWatcher);
        \Amp\cancel($client->writeWatcher);
        $this->clearKeepAliveTimeout($client);
        unset($this->clients[$client->id]);
        if ($this->stopPromisor && empty($this->clients)) {
            $this->stopPromisor->succeed();
        }
    }