Phpmqtt v1.3.0 release, mqtt protocol analysis & coroutine client


In v1.3.0, a new message class cluster is added, which is mainly used to reply to peer ack in the server.

use Simps\MQTT\Protocol\Types;
use Simps\MQTT\Protocol\V3;
use Simps\MQTT\Message\ConnAck;
use Simps\MQTT\Message\PingResp;

$server = new Swoole\Server('', 1883, SWOOLE_BASE);

        'open_mqtt_protocol' => true,
        'package_max_length' => 2 * 1024 * 1024,

$server->on('connect', function ($server, $fd) {
    echo "Client #{$fd}: Connect.\n";

$server->on('receive', function (Swoole\Server $server, $fd, $from_id, $data) {
    $data = V3::unpack($data);
    if (is_array($data) && isset($data['type'])) {
        switch ($data['type']) {
            case Types::CONNECT:
                if ($data['protocol_name'] != 'MQTT') {

                    return false;
                    (new ConnAck())->setCode(0)
            case Types::PINGREQ:
                $server->send($fd, (new PingResp()));
    } else {

$server->on('close', function ($server, $fd) {
    echo "Client #{$fd}: Close.\n";


Received atCONNECTAfter the package, you need to replyCONNACKThe previous version needs to be called manually by the userpackClasssend_data

Now you just need to instantiate the corresponding message class and set the required value, such as connack:

  • MQTT3
use Simps\MQTT\Message\ConnAck;

$ack = new ConnAck();

$server->send($fd, $ack->getContents());
$server->send($fd, $ack);
  • MQTT5
use Simps\MQTT\Message\ConnAck;
use Simps\MQTT\Protocol\ProtocolInterface;

$ack = new ConnAck();

$server->send($fd, $ack->getContents());
$server->send($fd, $ack);

Others can be viewedSpecific classesperhapsexamplefile

Update log

Downward incompatibility

  • Suback’spayloadShould be a return code, modify the key namepayloadbycodes (9e72ce2) (283ff41)


  • Optimize client recv (# 38) (99a85bf)
  • Add connack & Publish & pingresp message (700a6c9)
  • Add suback message and update GetMessage ID (09f6334)
  • Add disconnect, puback, pubrec, pubrel, unsuback (20a78c7)
  • Modify abstractconfig (dff6283)
  • Add message usage example (58d5b4a)
  • Add getcontents to facilitate__toStringCall in (a7ba577)
  • Add message usage document (bab2297)

About phpmqtt

  • Mqtt protocol analysis & coroutine client
  • Mqtt protocol parsing and coroutine client for PHP
  • Support mqtt protocol version 3.1, 3.1.1 and 5.0, support QoS 0, QoS 1 and QoS 2
  • The first PHP library supporting mqtt V5.0 protocol


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Phpmqtt v1.3.0 release, mqtt protocol analysis & coroutine client

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