Rabbit MQTT client in PHP? - phpmqtt

Question

I am new to MQTT. Can anyone help how to use Rabbitmq mqtt in PHP, I have MQTT broker in cloud so I want to develop based on PHP in my local system. Any library we want to download? Can anyone help on that in Ubuntu?

Answer 1

You can use the client lib: https://github.com/bluerhinos/phpMQTT as described here: https://www.cloudamqp.com/docs/php_mqtt.html
Publisher
require("phpMQTT.php");
$host = "hostname";
$port = port;
$username = "username";
$password = "password";
$message = "Hello CloudAMQP MQTT!";
//MQTT client id to use for the device. "" will generate a client id automatically
$mqtt = new phpMQTT($host, $port, "ClientID".rand());
if ($mqtt->connect(true,NULL,$username,$password)) {
$mqtt->publish("topic",$message, 0);
$mqtt->close();
}else{
echo "Fail or time out";
}
Subscriber
require("phpMQTT.php");
$host = "hostname";
$port = port;
$username = "username";
$password = "password";
$mqtt = new phpMQTT($host, $port, "ClientID".rand());
if(!$mqtt->connect(true,NULL,$username,$password)){
exit(1);
}
//currently subscribed topics
$topics['topic'] = array("qos"=>0, "function"=>"procmsg");
$mqtt->subscribe($topics,0);
while($mqtt->proc()){
}
$mqtt->close();
function procmsg($topic,$msg){
echo "Msg Recieved: $msg";
}
MQTT is enabled by default on all CloudAMQP servers, so there is no need to enable the MQTT plugin if you are using CloudAMQP as MQTT broker. If not, you need to enable this plugin: https://www.rabbitmq.com/mqtt.html