TYPO3 v15 dev-main snapshot ()

2026-08-10 22:31:09 +02:00
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+.. include:: /Includes.rst.txt
+
+.. _deprecation-85793:
+
+=====================================================================
+Deprecation: #85793 - Several constants from SystemEnvironmentBuilder
+=====================================================================
+
+See :issue:`85793`
+
+Description
+===========
+
+The following constants have been deprecated and should not be used any longer:
+
+* :php:`NUL` (Use :php:`"\0"` instead)
+
+* :php:`TAB` (Use :php:`"\t"` instead)
+
+* :php:`SUB` (Use :php:`chr(26)` instead)
+
+* :php:`TYPO3_URL_MAILINGLISTS`
+
+* :php:`TYPO3_URL_DOCUMENTATION`
+
+* :php:`TYPO3_URL_DOCUMENTATION_TSREF`
+
+* :php:`TYPO3_URL_DOCUMENTATION_TSCONFIG`
+
+* :php:`TYPO3_URL_CONSULTANCY`
+
+* :php:`TYPO3_URL_CONTRIBUTE`
+
+* :php:`TYPO3_URL_SECURITY`
+
+* :php:`TYPO3_URL_DOWNLOAD`
+
+* :php:`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 :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 :php:`chr(*)` variants or replace the constant usage with the URL in your own code.
+
+.. index:: PHP-API, FullyScanned