如何在 PHP 中创建 .json 数组的组合数组？

debugcn 发表于 Dev

杰弗里·W

我正在尝试制作一个包含一堆问题的表单，这些问题可以添加到 radioBox、checkBox 等中。我制作了一个 .json 文件，其中包含这样的问题和可能的答案（这只是文件的一小部分）：

{
"questions": {
    "0": {
            "question":"How many products?",
            "answers":["Less than 1000", "More than 1000", "More than 10000"],
            "score":[1, 2, 3],
            "info":"This is additional information for question 1"
        }
    ,
    "1":{
            "question":"How many websites?",
            "answers":["One", "Two", "Three"],
            "score":[1, 2, 3],
            "info":"This is additional information for question 2"
        }
}
}

我使用一个类，其中有几个函数来创建可在我的常规 .php 页面上使用的数组。我使用以下代码提出了一系列问题，该代码有效：

$questions = [];

foreach($json['questions'] as $key => $value){
        $this->questions[] = $value['question'];
}

现在我可以只使用 question[0] 来获得第一个问题和第二个问题 [1]，这真的很好。我想要做的是创建一个数组，其中包含每个问题的所有答案，以便我可以对答案做类似的事情。理想情况下，它看起来像这样：

array:
    arrayQuestion1Answers:
        string: answer1
        string: answer2
        string: answer3
    arrayQuestion2Answers:
        string: answer1
        string: answer2
        string: answer3

这样我就可以做一些类似 arrayQuestion1[0] 的事情来从第一个问题中得到第一个答案，而 arrayQuestion2[2] 从第二个问题中得到第三个答案。

感谢您阅读我很长（而且可能很愚蠢）的问题，希望能帮到您！

安贾莉·帕蒂尔

试试这个，

$json = '{
    "questions": {
        "0": {
            "question":"How many products?","answers":["Less than 1000", "More than 1000", "More than 10000"],"score":[1, 2, 3],"info":"This is additional information for question 1"
        }
        ,"1":{
            "question":"How many websites?","answers":["One", "Two", "Three"],"score":[1, 2, 3],"info":"This is additional information for question 2"
        }
    }
}
';
$questions = json_decode($json,true);
$question = $questions['questions'];
foreach($question as $key => $que):
    $answer['arrayQuestion'.$key.'Answers'] = $que['answers'];
endforeach;
echo '<pre>';
print_r($answer);

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