MQTT Control Packets MUST be sent in WebSocket binary data frames (#110)

Fix get MAXIMUM_PACKET_SIZE byte error (#106)

Fix branch-alias

Fix error in calculating properties length

Swoole master only supports PHP 8.x (#75)

* Swoole master only supports PHP 8.x

* Update test.yml

Add php81 test (#68)

Add handleVerbose (#65)

Add getLevel (#55)

* Add getLevel

* Add getLevel example

Format code

Add getClient docs