Deprecation: #95257 - GeneralUtility::isFirstPartOfStr()

See Issue #95257


The helper method GeneralUtility::isFirstPartOfStr() has been marked as deprecated, as the newly available PHP-built in function str_starts_with() can be used instead, which supports proper typing and is faster on PHP 8.0.

For PHP 7.4 installations, the dependency symfony/polyfill-php80 adds the PHP function in lower PHP environments, which TYPO3 Core ships as dependency.


Calling GeneralUtility::isFirstPartOfStr() will trigger a PHP deprecation notice.

Affected Installations

TYPO3 installations using this TYPO3 API function - either via extensions or in their own site-specific code. An analysis via TYPO3’s extension scanner will show any matches.


Replace all calls of GeneralUtility::isFirstPartOfStr() with str_starts_with() to avoid deprecation warnings and to keep your code up-to-date.

See for further syntax.