Fired when a connection is closed.
Object Oriented Interface
public function fireDisconnected($param);
ipworksmq_mqtt_register_callback($res, 3, array($this, 'fireDisconnected'));
If the connection is broken normally, StatusCode is 0 and Description is "OK".
If the connection is broken for any other reason, StatusCode has the error code returned by the TCP/IP subsystem. Description contains a description of this code. The value of StatusCode is equal to the value of the TCP/IP error.
Please refer to the Error Codes section for more information.