Deprecation: #100657 - TYPO3_CONF_VARS['BE']['languageDebug']
See forge#100657
Description
The configuration option
$GLOBALS
has been marked as deprecated in TYPO3 v12, it will be removed with TYPO3 v13
along with the property
\TYPO3\.
Setting the configuration option language to true adds the label name
including the path to the .xlf file to the output in the backend.
The intention was to allow translators to see where a specific localized string comes from in the backend to allow locating missing localization sources.
Judging from translators feedback, the option isn't used in practice, though: Setting the toggle to true leads to a massively convoluted backend experience that breaks tons of CSS and renders the backend so unusable that it's hardly a benefit at all.
TYPO3 v12 cleaned up lots of label usages and makes them more unique. Translators should find single label usages much more easily by searching the code base for label names and label files. Also, many Fluid templates are located more transparently and are easier to find, localizing labels within PHP classes is also improving a lot. Translators should in general have less headaches to see where labels are used, and this will improve further.
Impact
The option has been marked as deprecated in TYPO3 v12 and does not have any effect anymore with TYPO3 v13.
Affected installations
The target of this toggle were translators, production sites are not affected
by this. Extensions using the property
\TYPO3\
are found by the extension scanner as weak match.
Migration
Remove access to
\TYPO3\.