对于孩子价值观的PHP stdClass的对象嵌套对象

Question

我在laravel工作stdClass的对象。我得值从两个表结合起来。含有一些问题，另一种是包含了多项选择题，即第一个。如何结果的方式，问题的对象可能包含了答案对象为嵌套对象相结合。我想这样的结构：

stdClass Object
(
[question_id] => 4
[title] => How to add data?
[options] => Array
(
[0] => stdClass Object
(
[id] => 1
[question_id] => 4
[option_title] => By any device
)

[1] => stdClass Object
(
[id] => 2
[question_id] => 4
[option_title] => By mobile
)

[2] => stdClass Object
(
[id] => 3
[question_id] => 4
[option_title] => By Laptop
)
)
stdClass Object
(
[question_id] => 5
[title] => Where to add data?
[options] => Array
(
[0] => stdClass Object
(
[id] => 1
[question_id] => 5
[option_title] => Lahore
)

[1] => stdClass Object
(
[id] => 2
[question_id] => 5
[option_title] => Karachi
)

[2] => stdClass Object
(
[id] => 3
[question_id] => 5
[option_title] => Multan
)

);

Answer 1

这是使用的foreach与键有点紧张。终于研制下面的代码，它完美地工作：

foreach ($question_data as $key => $question) {
            foreach ($option_data as $key2 => $opt) {
                if ($question_data[$key]->question_id == $option_data[$key2]['question_id'] && $question->q_type != 3) {
                    $question->options[] = [
                        'question_id' => $option_data[$key2]['question_id'],
                        'option_id' => $option_data[$key2]['id'],
                        'option_title' => $option_data[$key2]['option_title']
                    ];
                } else if($question->q_type == 3) {
                    $question->options = [];
                }
            }
        }

它提供了以下结果：

"question_data": [
        {
            "question_id": 2,
            "title": "Describe about visit",
            "q_type": 3,
            "question_group_id": 1,
            "options": []
        },
        {
            "question_id": 3,
            "title": "How to upload data",
            "q_type": 2,
            "question_group_id": 1,
            "options": [
                {
                    "question_id": 3,
                    "option_id": 4,
                    "option_title": "By any device"
                },
                {
                    "question_id": 3,
                    "option_id": 5,
                    "option_title": "By mobile"
                },
                {
                    "question_id": 3,
                    "option_id": 6,
                    "option_title": "By camera"
                },
                {
                    "question_id": 3,
                    "option_id": 7,
                    "option_title": "By Laptop"
                },
                {
                    "question_id": 3,
                    "option_id": 8,
                    "option_title": "No answer"
                }
            ]
        },
        {
            "question_id": 4,
            "title": "How to add question?",
            "q_type": 3,
            "question_group_id": 1,
            "options": []
        },
        {
            "question_id": 5,
            "title": "Multi selection is working?",
            "q_type": 1,
            "question_group_id": 1,
            "options": [
                {
                    "question_id": 5,
                    "option_id": 9,
                    "option_title": "Yes"
                },
                {
                    "question_id": 5,
                    "option_id": 10,
                    "option_title": "No"
                },
                {
                    "question_id": 5,
                    "option_id": 11,
                    "option_title": "Not Confirmed"
                },
                {
                    "question_id": 5,
                    "option_id": 12,
                    "option_title": "In progress"
                },
                {
                    "question_id": 5,
                    "option_id": 13,
                    "option_title": "Testing"
                }
            ]
        }
    ]