SAMConnection::subscribe

(PECL sam >= 0.1.0)

SAMConnection::subscribe — Create a subscription to a specified topic

Beschreibung

SAMConnection::subscribe ( string $targetTopic ) : string

The "subscribe" method is used to create a new subscription to a specified topic.

Parameter-Liste

targetTopic

The identity of the topic (topic://topicname) to subscribe to.

Rückgabewerte

A subscription identifier that can be used in a subsequent receive call as a selector to obtain any topic data or FALSE if an error occurred. The subscription identifier should be used in the receive call in place of the simple topic name.

Beispiele

Beispiel #1 Subscribe to a topic

<?php
$subid = $conn->subscribe('topic://A');
if (!$subid) {
  // The subscribe failed!
  echo "Subscribe failed ($conn->errno) $conn->error";
}
?>