# Predefined Constants

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.

`MONGODB_VERSION` (string)
  x.y.z style version number of the extension
`MONGODB_STABILITY` (string)
  Current stability (alpha/beta/stable)

`↑` and `↓` to navigate • `Enter` to select • `Esc` to close • `/` to open