下列常量由此扩展定义，且仅在此扩展编译入 PHP 或在运行时动态载入时可用。
Other
The plugins version number can be obtained using
MYSQLND_MUX_VERSION or
MYSQLND_MUX_VERSION_ID.
MYSQLND_MUX_VERSION
is the string representation of the numerical version number
MYSQLND_MUX_VERSION_ID, which is an integer such as 10000.
Developers can calculate the version number as follows.
| Version (part) | Example |
|---|---|
| Major*10000 | 1*10000 = 10000 |
| Minor*100 | 0*100 = 0 |
| Patch | 0 = 0 |
| MYSQLND_MUX_VERSION_ID | 10000 |