Deprecation: #85793 - Several constants from SystemEnvironmentBuilder 

See forge#85793

Description 

The following constants have been deprecated and should not be used any longer:

  • NUL (Use "\0" instead)
  • TAB (Use "\t" instead)
  • SUB (Use chr(26) instead)
  • TYPO3_URL_MAILINGLISTS
  • TYPO3_URL_DOCUMENTATION
  • TYPO3_URL_DOCUMENTATION_TSREF
  • TYPO3_URL_DOCUMENTATION_TSCONFIG
  • TYPO3_URL_CONSULTANCY
  • TYPO3_URL_CONTRIBUTE
  • TYPO3_URL_SECURITY
  • TYPO3_URL_DOWNLOAD
  • TYPO3_URL_SYSTEMREQUIREMENTS

Impact 

The above constants are still defined in TYPO3 v9, but their definition will be dropped in TYPO3 v10.

Affected Installations 

Constants can not be deprecated as such and using them does not trigger a PHP E_USER_DEPRECATED error. Extensions in TYPO3 v9 should not use them any longer but switch to the alternatives already.

The extension scanner will find usages of the above constants and marks them as strong matches.

Migration 

Use one of the chr(*) variants or replace the constant usage with the URL in your own code.