I'm sorry. I don't know what went wrong

[wjssk0517]

The code looks like this

$server   = '192.168.8.41';
        $port     = 9001;
        $clientId = '75c90d5b-4cac-4d38-88a0-a1b2c3d4';
        try {
            $mqtt = new MqttClient($server, $port, $clientId);
        } catch (ProtocolNotSupportedException $e) {
            dump($e->getMessage());
        }
        //try {
        $connectionSettings = (new ConnectionSettings)
            ->setUsername('htt')
            ->setPassword('password');
        try {
            $mqtt->connect($connectionSettings, true);
        } catch (ConfigurationInvalidException $e) {
            echo 'ConfigurationInvalidException';
            dump($e->getMessage());
        } catch (ConnectingToBrokerFailedException $e) {
            echo 'ConnectingToBrokerFailedException';
            dump($e->getMessage());
        }
        $mqtt->publish('/gateway/2d5181efa65c4244a294ffd1f6c31b3e/request', 'Hello World!', 0);
        echo 2;
        $mqtt->disconnect();

[wjssk0517]

There is no problem with my MQTT service

[Namoshek]

Your exception handling is reporting an error, but your code is not terminating in case of an exception.

$mqtt->publish('/gateway/2d5181efa65c4244a294ffd1f6c31b3e/request', 'Hello World!', 0);

shouldn't be called when your client failed connecting to the broker.

Anyway, my guess is you are using an unsupported protocol to connect to the broker (default is MQTT 3.1, not MQTT 3.1.1). What broker and version are you using?

[wjssk0517]

It doesn't actually run up here
$mqtt->publish('/gateway/2d5181efa65c4244a294ffd1f6c31b3e/request', 'Hello World!', 0);

I've tried version switching

This is my MQTT service

[wjssk0517]

Does my code need to be deployed with the MQTT service

[wjssk0517]

Sorry, I passed the test because of my port

9001 is a Webstock port

I just used 1883

Thank you

[Namoshek]

I was just about to say that... 👍