src/Core/Startup/ErrorControlChain.php
protected function lastErrorWasFatal()
    {
        if ($this->lastException) {
            return true;
        }
        $error = error_get_last();
        return $error && ($error['type'] & self::$fatal_errors) != 0;
    }
protected function lastErrorWasFatal()
    {
        if ($this->lastException) {
            return true;
        }
        $error = error_get_last();
        return $error && ($error['type'] & self::$fatal_errors) != 0;
    }
protected function lastErrorWasFatal ( ) { if ( $ this -> lastException ) { return true ; } $ error = error_get_last ( ) ; return $ error && ( $ error [ 'type' ] & self :: $ fatal_errors ) != 0 ; }
Return true if the last error was fatal

@return boolean
Return true if the last error was fatal