TYPO3 v9 has reached its end-of-life September 30th, 2021 and is not maintained by the community anymore. Looking for a stable version? Use the version switch on the top left.

You can order Extended Long Term Support (ELTS) here: TYPO3 ELTS.

Error Handler

Class \TYPO3\CMS\Core\Error\ErrorHandler is the default error handler in TYPO3.


  • Can be registered for all PHP errors or for only a subset of the PHP errors which will then be handled by an error handler.

  • Displays error messages as flash messages in the Backend (if exceptionHandler is set to \TYPO3\CMS\Core\Error\DebugExceptionHandler). Since flash messages are integrated in the Backend template, PHP messages will not destroy the Backend layout.

  • Displays errors as TsLog messages in the adminpanel.

  • Logs error messages to \TYPO3\CMS\Core\Utility\GeneralUtility::syslog() which is able to write error messages to a file, to the web server's error_log, the system's log and it can send error- and exception-messages by mail. \TYPO3\CMS\Core\Utility\GeneralUtility::syslog() offers a hook and can be extended by userdefined logging methods.

  • Logs error messages to the sys_log table. Logged errors are displayed in the belog extension (ADMIN TOOLS > Log). This will work only with an existing DB connection.