TYPO3 Core

Current situation:

    public function usort($callbackFunction) {
        // TODO: Implement usort() method with TCEforms in mind
        throw new RuntimeException('This method is not yet supported.', 1322545589);
    }

    public function moveItemAt($currentPosition, $newPosition = 0) {
        // TODO: Implement usort() method with TCEforms in mind
        throw new RuntimeException('This method is not yet supported.', 1322545626);
    }