<?php $client = new Mosquitto\Client(); $client->onConnect('connect'); $client->onDisconnect('disconnect'); $client->onSubscribe('subscribe'); $client->onMessage('message'); $client->setWill('/hello', "Client died :-(", 1, 0); $client->connect("localhost", 1883, 5); $client->subscribe('/#', 1); $client->loopForever(); function connect($r) { echo "I got code {$r}\n"; } function subscribe() { echo "Subscribed to a topic\n"; } function message($message) { printf("Got a message on topic %s with payload:\n%s\n", $message->topic, $message->payload); } function disconnect() { echo "Disconnected cleanly\n"; }