<?php
/*
    The client sends message to the server
*/
$message = count($argv)>1 ? $argv[1] : 'Hello';

/* Create a socket */
$queue = new ZMQSocket(new ZMQContext(), ZMQ::SOCKET_REQ);
$queue->connect("tcp://127.0.0.1:5555");
$queue->setSockOpt (ZMQ::SOCKOPT_LINGER, 1000);

$queue->send($message);
echo $queue->recv();