IncomingMessageTopic Property

This message's topic.

Object Oriented Interface

public function getIncomingMessageTopic($incomingmessageindex);

Procedural Interface

ipworksmq_mqtt_get($res, 23 , $incomingmessageindex);

Default Value



This message's topic.

MQTT 5 Notes:

If this value is empty, the IncomingMessageTopicAlias property holds the assigned alias for the topic.

If this value is not empty and IncomingMessageTopicAlias is non-zero,

The $incomingmessageindex parameter specifies the index of the item in the array. The size of the array is controlled by the IncomingMessageCount property.

This property is read-only and not available at design time.

Data Type


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IPWorks MQ 2020 PHP Edition - Version 20.0 [Build 8162]