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Extending the $TCA array¶
This page is for an outdated TYPO3 version (7.6). For newer versions, you can find the information in:
TYPO3 Explained: Extending the TCA Array (7.6)
Being a PHP array, the Table Configuration Array can be easily
extended. It can be accessed as the global variable
TYPO3 also provides APIs for making this simpler.