如何迭代嵌套在数组中的数组

Question

下面有 json 数组，我正在尝试访问 ProductResults 位。

我希望输出是这样的：

Term: 47, Type:HP, Payment: 229.4 
Term: 47, Type:PCP, Payment: 172.23 
Term: 60, Type:PCP, Payment: 186.82

但我什至难以访问数组的其他部分。

PHP:

$json = json_decode($resp, true);

foreach ($json['VehicleResults'] as $item)
{
    $data = $item['FinanceProductResults'];

    $v0 = $data['Term'];
    
    echo $v0;

}

JSON:

{
    "VehicleResults": [{
        "Id": "0",
        "FinanceProductResults": [{
            "Term": 47,
            "AnnualMileage": 6000,
            "Deposits": 1000,
            "ProductResults": [{
                "Key": "HP",
                "Payment": 229.4
            }, {
                "Key": "PCP",
                "Payment": 172.23
            }]
        }, {
            "Term": 60,
            "AnnualMileage": 6000,
            "Deposits": 1000,
            "ProductResults": [{
                "Key": "HP",
                "Payment": 186.82
            }]
        }]
    }]
}

Answer 1

FinanceProductResults也是一个数组，所以它也需要作为一个数组来访问。就像您访问了 VehicleResults 一样，ProductResults 也是如此。所以你的代码应该看起来像这样。

$json = json_decode($resp, true);

foreach ($json['VehicleResults'] as $item)
{
    $dataItems = $item['FinanceProductResults'];

    foreach ($dataItems as $data) {
        $v0 = $data['Term'];
        
        foreach ($data['ProductResults'] as $productResult) {
            $type = $productResult['Key'];
            $payment = $productResult['Payment'];

            echo "Term: $v0, Type: $type, Payment: $payment";
        }
    }                    
}

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