使用php提取每个级别的数据

下面是JSon数据

{
        "statusType": "OK",
        "entity": [
            {
            "category": "category1","difficultyLevel": "Easy",
            "quizAnswerChoices": [{"choiceText": "Yes", "choiceTextHash": "c3f1130841b507a4d1e0f45971d990c6ecd25406"}, {"choiceText": "Yes", "choiceTextHash": "c3f1130841b507a4d1e0f45971d990c6ecd25406"}]
            }
        ],
        "entityType": "java.util.ArrayList",
        "status": 200,
        "metadata": {}
    }

我需要解析 -实体 -quizAnswerChoices（清点物品）

---

如果您执行类似json的解码，如何检索每个

选项text

etc

$data = json_decode(json_data);

那么$data将是一个可遍历的数组

$data['entity']['quizAnswerChoices'] etc

---

让我们考虑在变量名为<代码>“$内容”< /COD>中接收此JSON。 你所要做的就是解码它：

$decoded = json_decode($contents, true); //True so, the decoded object will be converted into an ssociative array

print_r($decoded);

使用

用这个

$arry = json_decode($json,true);


 foreach ($arry['entity'] as $ke => $ve) {
       foreach ($ve['quizAnswerChoices'] as $k => $v) {
         print_r($v);
    } 
 }

---

使用

json\u decode

将json转换为数组

$dataArray = json_decode($json_string, true)
$dataArray['entity']; // entity
$dataArray['entity']['quizAnswerChoices']; // quizAnswerChoices
$dataArray['entity']['quizAnswerChoices']; // quizAnswerChoices
count($dataArray['entity']['quizAnswerChoices']); // quizAnswerChoices count

---

向我们展示您如何将json数据转换为PHP数组，然后从那里开始。例如：

count（$arrayname['entity']['quizAnswerChoices']）

。

$dataArray = json_decode($json_string, true)
$dataArray['entity']; // entity
$dataArray['entity']['quizAnswerChoices']; // quizAnswerChoices
$dataArray['entity']['quizAnswerChoices']; // quizAnswerChoices
count($dataArray['entity']['quizAnswerChoices']); // quizAnswerChoices count