如何从 php 中的嵌套 json 获取值

Question

我有这个 json 文件

{
"success": true,
"data": {
    "total": "2",
    "returned": 2,
    "start": 0,
    "limit": 10,
    "transactions": [
        {
            "id": "16393567",
            "type": "Credit",
            "currency": "BTC",
            "amount": "0.00019449",
            "when": "2021-09-03 10:27:48",
            "rental": "3411209",
            "rig": "205363",
            "status": "Pending",
            "pending_seconds": "716202"
        },
        {
            "id": "16377905",
            "type": "Credit",
            "currency": "BTC",
            "amount": "0.00000203",
            "when": "2021-09-01 11:42:47",
            "rental": "3408621",
            "rig": "205363",
            "status": "Cleared",
            "pending_seconds": 0
        }
    ]
}

}

我可以使用此代码获取数据下的值

 $jsonCont = file_get_contents('temp.json');    
 $content = json_decode($jsonCont, true);

 $rig_detail= $content['data']['total'];
 $rig_detail= $content['data']['returned'];
 $rig_detail= $content['data']['start'];
 $rig_detail= $content['data']['limit'];

我的问题存在于我尝试从我尝试过的“交易”中获取数据的地方

 $rig_detail= $content['data']['transactions']['id'];

然而，这并没有达到我的预期。我需要做什么才能访问交易部分中的数据？

Answer 1

$content['data']['transactions']里面的元素比较多，所以是数组

尝试这样的事情：

 $rig_detail= $content['data']['transactions'][0]['id'];

如何从 php 中的嵌套 json 获取值

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