Weather update server in PHP

Table of Contents

<?php
/*
* Weather update server
* Binds PUB socket to tcp://*:5556
* Publishes random weather updates
* @author Ian Barber <ian(dot)barber(at)gmail(dot)com>
*/

// Prepare our context and publisher
$context = new ZMQContext();
$publisher = $context->getSocket(ZMQ::SOCKET_PUB);
$publisher->bind("tcp://*:5556");
$publisher->bind("ipc://weather.ipc");

while (true) {
// Get values that will fool the boss
$zipcode = mt_rand(0, 100000);
$temperature = mt_rand(-80, 135);
$relhumidity = mt_rand(10, 60);

// Send message to all subscribers
$update = sprintf ("%05d %d %d", $zipcode, $temperature, $relhumidity);
$publisher->send($update);
}