Configuration inspector (readonly)
Only available if typo3/cms-lowlevel is installed.
The configuration module can be found at System > Configuration. It allows integrators to view and validate the global configuration of TYPO3. The module displays all relevant global variables, such as TYPO3_CONF_VARS, TCA and many more, in a tree format which is easy to browse through. Over time, this module has been extended to also display configuration of newly introduced features like the middleware stack and event listeners.
See also
The module is described in detail in the EXT:lowlevel docs, chapter Module System > Configuration
Table of Contents
Warning
This module is always viewed in the backend context. Variables defined only in the FE context will not be visible.
Exploring global variables in array $GLOBALS
Many of the global variables described in chapter $GLOBALS can be inspected using the module System > Configuration.
This module is purely a browser. It does not let you change any settings.
Extending the Configuration module
The System > Configuration module can also be extended or configured to blind options. See the typo3/cms-lowlevel manual, chapter Configuration module.