Aerys\Server::renewKeepAliveTimeout PHP Method

    private function renewKeepAliveTimeout(Client $client)
    {
        $timeoutAt = $this->ticker->currentTime + $this->options->keepAliveTimeout;
        // DO NOT remove the call to unset(); it looks superfluous but it's not.
        // Keep-alive timeout entries must be ordered by value. This means that
        // it's not enough to replace the existing map entry -- we have to remove
        // it completely and push it back onto the end of the array to maintain the
        // correct order.
        unset($this->keepAliveTimeouts[$client->id]);
        $this->keepAliveTimeouts[$client->id] = $timeoutAt;
    }