Deprecation: #88567 - $GLOBALS[‘LOCAL_LANG’]

See Issue #88567

Description

The global array $GLOBALS['LOCAL_LANG'] contains all labels from language files that were loaded “globally”. However, instead of having this in global scope, it is more feasible to have it scoped to the actual LanguageService that loaded this data, in order to allow various language functionality in the same PHP process without having to deal with global variables.

For this reason, it is discouraged to use $GLOBALS['LOCAL_LANG'] but instead rely on LanguageService->includeLLfile() which returns the actual values as well, but only the ones loaded from this instance.

Since an instance of TYPO3\CMS\Core\Localization\LanguageService is usually available via $GLOBALS['LANG'] the labels are accessible within PHP anyways.

Due to this change, the second and third arguments of LanguageService->includeLLFile() have been marked as deprecated.

Impact

Calling the method above with an explicit second and/or third argument will trigger a PHP E_USER_DEPRECATED error.

Affected Installations

Any TYPO3 installation with third-party extensions using $GLOBALS['LOCAL_LANG'] or the mentioned method with more than one argument, which is very unlikely.

Migration

Use the return value of LanguageService->includeLLFile() and remove the second and third arguments to work with label files.