Webiny\Component\Http\Request::getClientIp PHP Method

    public function getClientIp()
    {
        $remoteAddress = $this->server()->remoteAddress();
        $fwdClientIp = $this->server()->get($this->getTrustedHeaders()['client_ip']);
        if ($fwdClientIp && $remoteAddress && in_array($remoteAddress, $this->getTrustedProxies())) {
            // Use the forwarded IP address, typically set when the
            // client is using a proxy server.
            // Format: "X-Forwarded-For: client1, proxy1, proxy2"
            $clientIps = explode(',', $fwdClientIp);
            $clientIp = array_shift($clientIps);
        } elseif ($this->server()->httpClientIp() && $remoteAddress && in_array($remoteAddress, $this->getTrustedProxies())) {
            // Use the forwarded IP address, typically set when the
            // client is using a proxy server.
            $clientIps = explode(',', $this->server()->httpClientIp());
            $clientIp = array_shift($clientIps);
        } elseif ($this->server()->remoteAddress()) {
            // The remote IP address
            $clientIp = $this->server()->remoteAddress();
        } else {
            return false;
        }
        return $clientIp;
    }