The goal of this fork is give PHP 7.x support and improved the handle errors.
You can access to original work at http://github.com/bluerhinos/phpMQTT
| Value | Return Code Response | Description |
|---|---|---|
| 0x00 | Connection Accepted | Connection accepted |
| 0x01 | Connection Refused, unacceptable protocol version | The Server does not support the level of the MQTT protocol requested by the Client |
| 0x02 | Connection Refused, identifier rejected | The Client identifier is correct UTF-8 but not allowed by the Server |
| 0x03 | Connection Refused, Server unavailable | The Network Connection has been made but the MQTT service is unavailable |
| 0x04 | Connection Refused, bad user name or password | The data in the user name or password is malformed |
| 0x05 | Connection Refused, not authorized | The Client is not authorized to connect |
| 0x06-0xFF | Reserved for future use |