TYPO3 Core

For certain purposes it'd be nice to have a place to store key, value pairs.

Example: Drupal offers a system status report that also shows when the cron service has been run the last time. To achieve that they store the time the cron ran the last time in a DB table. This could particularly be nice for our scheduler too. Another example: The status report stores whether an error with the system was detected and reports that in a flash message through out the system with a link to the status report until the issue is fixed by an admin.

• add a table with columns name (string, PK), value (string, holds the value as serialized PHP array)
• add a class t3lib_Registry with at least methods get('name', default_value_if_name_not_found) and set('name', 'value')

• add an easy way to retrieve values from the registry in TS
• make it possible to view the registry key, value pairs in the Admin tools->Configuration module
  (issue imported from #M11438)