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Create a subscription to a specified topic. ()

SAMConnection {
  string subscribe(string targetTopic);

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



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

Return Values

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.


Example 2132. Subscribe to a topic

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