mysqlnd (+ mysqli etc.) - expose the gtid to PHP in the OkPacket

Description

Looks like the gtid is already being parsed, but not exposed in PHP. It would be great to just be able to access it from the OkPacket with something like packet->gtid or packet->state_changes->gtid.

why

I can use it to track what user did what gtid change to with a gtid aware cdc on mysql. This is already working on a nodejs server (using mysql2). From my PHP server, I can only track from my ORM with timestamp + table + primary-key-id instead of gtid.

The other state changes would also be helpful from PHP-land, e.g. database for limiting the number of pools I need to run in a multi-db environment, which i cant implement in PHP at all.

首先跟踪 mysqlnd 如何通过 mysqli 解析并公开 MySQL OkPacket，重点关注现有的数据包和状态变更处理。完成的标准是 PHP 代码可以访问数据包 GTID，以及在已公开的情况下访问其他请求的状态变更；使用能够生成支持 GTID 的响应的 MySQL 设置验证行为。