PHP Manual: Create a new socket

Description

public ZMQSocket ZMQContext::getSocket(int $type, string $persistent_id = null, callable $on_new_socket = null)

Shortcut for creating new sockets from the context. If the context is not persistent the persistent_id parameter is ignored and the socket falls back to being non-persistent. The on_new_socket is called only when a new underlying socket structure is created.

Parameters

type: ZMQ::SOCKET_* constant to specify socket type.
persistent_id: If persistent_id is specified the socket will be persisted over multiple requests.
on_new_socket: Callback function, which is executed when a new socket structure is created. This function does not get invoked if the underlying persistent connection is re-used. The callback takes ZMQSocket and persistent_id as two arguments.

Return Values

Returns a ZMQSocket object.

Errors/Exceptions

Throws ZMQSocketException on error.

Examples

Example #1 A ZMQContext example

Basic usage

<?php
/* Allocate a new context */
$context = new ZMQContext();

/* Create a new socket */
$socket = $context->getSocket(ZMQ::SOCKET_REQ, 'my sock');

/* Connect the socket */
$socket->connect("tcp://example.com:1234");

/* Send a request */
$socket->send("Hello there");

/* Receive back the response */
$message = $socket->recv();
echo "Received message: {$message}\n";
?>