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# SAMConnection->subscribe()

(no version information, might be only in CVS)

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

## Beschreibung

class SAMConnection {
string subscribe ( string targetTopic )
}

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"; } ?>`

## Siehe auch

SAMConnection->unsubscribe()

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SAMConnection::setDebug() | Nach oben | SAMConnection->unsubscribe()