.. include:: /Includes.rst.txt .. _deprecation-100596-1681478199: ============================================= Deprecation: #100596 - GeneralUtility::_GET() ============================================= See :issue:`100596` Description =========== The method :php:`\TYPO3\CMS\Core\Utility\GeneralUtility::_GET()` has been marked as deprecated and should not be used any longer. Modern code should access GET and POST data from the PSR-7 :php:`ServerRequestInterface`, and should avoid accessing superglobals :php:`$_GET` directly. This also avoids future side-effects when using sub-requests. Some :php:`GeneralUtility` related helper methods like :php:`_GET()` violate this, using them is considered a technical debt. They are being phased out. Impact ====== Calling the method from PHP code will log a PHP deprecation level entry, the method will be removed with TYPO3 v13. Affected installations ====================== TYPO3 installations with third-party extensions using :php:`GeneralUtility::_GET()` are affected, typically in TYPO3 installations which have been migrated to the latest TYPO3 Core versions and haven't been adapted properly yet. The extension scanner will find usages with a strong match. Migration ========= :php:`GeneralUtility::_GET()` is a helper method that retrieves incoming HTTP `GET` query arguments and returns the value. The same result can be achieved by retrieving arguments from the request object. An instance of the PSR-7 :php:`ServerRequestInterface` is handed over to controllers by TYPO3 Core's PSR-15 :php:`\TYPO3\CMS\Core\Http\RequestHandlerInterface` and middleware implementations, and is available in various related scopes like the frontend :php:`\TYPO3\CMS\Frontend\ContentObject\ContentObjectRenderer`. Typical code: .. code-block:: php use TYPO3\CMS\Core\Utility\GeneralUtility; // Before $value = GeneralUtility::_GET('tx_scheduler'); // After $value = $request->getQueryParams()['tx_scheduler']) ?? null; .. index:: PHP-API, FullyScanned, ext:core