The constants below are defined by this extension, and
will only be available when the extension has either
been compiled into PHP or dynamically loaded at runtime.
Optional connect option to indicate to an MQTT server that all previous connection data
for this client should be removed and that subscriptions should be deleted when the client
disconnects explicitly or unexpectedly.
Connect attribute used to define the password to be used for the user
account being used to connect to a messaging server that requires
authorisation for connections.
Connect attribute value used to request messages are made persistent
on the messaging server to protect against loss of messages in the
event of failure.
Option name used on send requests to specify the target client mode.
This can either be default to 'jms' or 'mq'. The default is 'jms' which
means an RFH2 header is sent with the message whereas the 'mq' setting
means no RFH2 is included.
Connect protocol definition for selecting the IBM WebSphere Platform
Messaging protocol for communication with a WebSphere Application Server
messaging server.