Stomp::subscribe

    stomp_subscribe

    (PECL stomp >= 0.1.0)

    Stomp::subscribe -- stomp_subscribe — Registers to listen to a given destination

    说明

    面向对象风格 (method):

    public Stomp::subscribe(string $destination, array $headers = ?): bool

    过程化风格:

    stomp_subscribe(resource $link, string $destination, array $headers = ?): bool

    Registers to listen to a given destination.

    参数

    link

    仅对过程化样式：由 stomp_connect() 返回的 stomp 连接标识符。

    destination

    Destination to subscribe to.

    headers

    关联数组包含附加的头信息（例如： receipt）。

    返回值

    成功时返回 true， 或者在失败时返回 false。

    示例

    See stomp_ack().

    注释

    小技巧

    Stomp is inherently asynchronous. Synchronous communication can be implemented adding a receipt header. This will cause methods to not return anything until the server has acknowledged receipt of the message or until read timeout was reached.

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    holycd
    7 years ago
    Using Topics from PHP over Stomp
    $clientId = 'test:dev';
    $topic = '/topic/perm.user';

    try {
    $stomp = new Stomp('tcp://localhost:61613','system','manager', array('client-id'=> $clientId ));
    } catch(StompException $e) {
    die('Connection failed: ' . $e->getMessage());
    }

    $isSubscribe = $stomp->subscribe($topic);

    while($isSubscribe){
    if ($stomp->hasFrame()) {
    $frame = $stomp->readFrame();
    if ($frame != NULL) {
    print "Received: " . $frame->body . " - time now is " . date("Y-m-d H:i:s"). "\n";
    // $stomp->ack($frame);
    }
    // sleep(1);
    }
    else {
    print "No frames to read\n";
    }
    }
    if($isSubscribe){
    $stomp->unsubscribe($topic);
    unset($stomp);
    }

    Can not receive the topic frame
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