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    ZMQSocket::__construct

    (PECL zmq >= 0.5.0)

    ZMQSocket::__construct — Construct a new ZMQSocket

    説明

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

    Constructs a ZMQSocket object. persistent_id parameter can be used to allocated a persistent socket. A persistent socket has to be allocated from a persistent context and it stays connected over multiple requests. The persistent_id parameter can be used to recall the same socket over multiple requests. The on_new_socket is called only when a new underlying socket structure is created.

    パラメータ

    context

    ZMQContext object.

    type

    The socket type. See ZMQ::SOCKET_* constants.

    persistent_id

    If persistent_id is specified the socket will be persisted over multiple requests. If context is not persistent the socket falls back to non-persistent mode.

    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.

    callback(ZMQSocket $socket, string $persistent_id = null)

    エラー / 例外

    Throws ZMQSocketException on error.

    例

    例1 A ZMQSocket() example

    Using callback the bind/connect socket

    <?php

    /*
    The socket is persistent so this function is called only on the
    first request to the script.
    */
    function on_new_socket_cb(ZMQSocket $socket, $persistent_id = null)
    {
    if (    $persistent_id === 'server') {
    $socket->bind("tcp://localhost:12122");
    } else {
    $socket->connect("tcp://localhost:12122");
    }
    }

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

    /* Create a new socket */
    $socket = $context->getSocket(ZMQ::SOCKET_REP, 'server', 'on_new_socket_cb');

    $message = $socket->recv();
    echo     "Received message: {$message}\n";
    ?>

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