您好，我正在嘗試查看（從得出結論后）如何驗證其中之一'choices' => $question->buildAnswerWithValidKey()是正確的。這是問題數組。Array(    [Sonne] => 1    [Mond] =>     [Und Sterne] => )我試圖在表格被提出后對此進行驗證。這是我的'choices'功能。根據具有正確密鑰的問題（在這種情況下為1或0，是/否），它會得到答案。 public function buildAnswerWithValidKey()    {        $answers = [];        $valid = [];        $answersWithValidKey = [];        /** @var Answer $answer */        foreach ($this->getAnswers() as $answer) {            $answers[] = $answer->getAnswer();            $valid[] = $answer->getValid();        }        //Sets answers as item and valid as key as required by 'choices'        $answersWithValidKey[] = array_combine($answers, $valid);        return $answersWithValidKey;    }這是我的控制器。我在努力驗證單選按鈕的位置。        /** @var Question $question */        $question = $this->questionRepository->findById(12)[0];        $options = ['question' => $question];        $form = $this->createForm(ExamType::class, null, $options);        $form->handleRequest($request);        if ($form->isSubmitted() && $form->isValid()) {        }        return [            'form' => $form->createView(),        ];這是我可能有幫助的其他課程。Answer.php-ManyToOne映射到的位置。