TYPO3 Core

Currently the TYPO3 ErrorHandler does not log FatalErrors to the sys_log-table. This happens because FatalErrors stop script execution.

It is easy to log this errors, too, if you register a shutdown function, which checks error_get_last.

Add this code to the constructor of \TYPO3\CMS\Core\Error\ErrorHandler

register_shutdown_function(function() {
    $error = error_get_last();
    if ($error['type'] & E_ERROR) {
        $this->handleError($error['type'], $error['message'], $error['file'], $error['line']);
    }
});

The handleError method should be adjusted and also check for E_ERROR, not only E_USER_ERROR:

$errorLevels = array(
    E_ERROR => 'Fatal Error',
    E_WARNING => 'Warning',
    E_NOTICE => 'Notice',
    E_USER_ERROR => 'User Error',
    E_USER_WARNING => 'User Warning',
    E_USER_NOTICE => 'User Notice',
    E_STRICT => 'Runtime Notice',
    E_RECOVERABLE_ERROR => 'Catchable Fatal Error',
    E_DEPRECATED => 'Runtime Deprecation Notice'
);
[...]
switch ($errorLevel) {
    case E_ERROR:
    case E_USER_ERROR:
    case E_RECOVERABLE_ERROR:
        $severity = 2;
        break;
    case E_USER_WARNING:
    case E_WARNING:
        $severity = 1;
        break;
    default:
        $severity = 0;
}