SAMConnection->subscribe()

(no version information, might be only in CVS)

SAMConnection->subscribe() --  Create a subscription to a specified topic.

说明

class SAMConnection {

string subscribe ( string targetTopic )

}

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

参数

targetTopic

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

返回值

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.

范例

例 1. Subscribe to a topic

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

参见

SAMConnection->unsubscribe()