PHP Manual: Connect the socket

Description

public ZMQSocket ZMQSocket::connect(string $dsn, bool $force = false)

Connect the socket to a remote endpoint. The endpoint is defined in format transport://address where transport is one of the following: inproc, ipc, tcp, pgm or epgm.

Parameters

dsn: The connect dsn, for example transport://address.
force: Tries to connect even if the socket has already been connected to given endpoint.

Return Values

Returns the current object.

Errors/Exceptions

Throws ZMQSocketException on error.

Examples

Example #1 A ZMQContext example

Construct a new context and allocate request socket from it

<?php
/* Server hostname */
$dsn = "tcp://127.0.0.1:5555";

/* Create a socket */
$socket = new ZMQSocket(new ZMQContext(), ZMQ::SOCKET_REQ, 'my socket');

/* Get list of connected endpoints */
$endpoints = $socket->getEndpoints();

/* Check if the socket is connected */
if (!in_array($dsn, $endpoints['connect'])) {
    echo "<p>Connecting to $dsn</p>";
    $socket->connect($dsn);
} else {
    echo "<p>Already connected to $dsn</p>";
}

/* Send and receive */
$socket->send("Hello!");
$message = $socket->recv();

echo "<p>Server said: {$message}</p>";
?>