我如何读取和更新 PHP 中的嵌套 JSON

Question

我是 PHP 的新手，对 PHP 数组没有什么经验，我在 JSON 文件下面有这个。

$json2=
'{
  "location": "westus",
  "properties": {
    "hardwareProfile": {
      "vmSize": "Standard_D1_v2"
    },
    "storageProfile": {
      "imageReference": {
        "sku": "2016-Datacenter",
        "publisher": "MicrosoftWindowsServer",
        "version": "latest",
        "offer": "WindowsServer"
      },
      "osDisk": {
        "caching": "ReadWrite",
        "managedDisk": {
          "storageAccountType": "Standard_LRS"
        },
        "name": "myVMosdisk",
        "createOption": "FromImage"
      }
    },
    "networkProfile": {
      "networkInterfaces": [
        {
          "id": "/subscriptions/{subscription-id}/resourceGroups/myResourceGroup/providers/Microsoft.Network/networkInterfaces/{existing-nic-name}",
          "properties": {
            "primary": true
          }
        }
      ]
    },
    "osProfile": {
      "adminUsername": "{your-username}",
      "computerName": "myVM",
      "adminPassword": "{your-password}"
    },
    "diagnosticsProfile": {
      "bootDiagnostics": {
        "storageUri": "http://{existing-storage-account-name}.blob.core.windows.net",
        "enabled": true
      }
    }
  }
}';

我想更新上面 JSON 中 'location'、'vmSize'、'sku'、'publisher'、'offer' 的值，

"location" : "eastus"
"vmSize" : "Standard_D3_v2"
"sku" : "20h1-evd"
"publisher" : "MicrosoftWindowsDesktop"
"offer" : "windows-10"

我已尝试对此执行以下操作，但我离正确导航数组还差得很远。

$arr = json_decode($json2, true);
print_r($arr);

有人可以帮忙吗？

Answer 1

试试这个代码

<?php

$json2=
'{
  "location": "westus",
  "properties": {
    "hardwareProfile": {
      "vmSize": "Standard_D1_v2"
    },
    "storageProfile": {
      "imageReference": {
        "sku": "2016-Datacenter",
        "publisher": "MicrosoftWindowsServer",
        "version": "latest",
        "offer": "WindowsServer"
      },
      "osDisk": {
        "caching": "ReadWrite",
        "managedDisk": {
          "storageAccountType": "Standard_LRS"
        },
        "name": "myVMosdisk",
        "createOption": "FromImage"
      }
    },
    "networkProfile": {
      "networkInterfaces": [
        {
          "id": "/subscriptions/{subscription-id}/resourceGroups/myResourceGroup/providers/Microsoft.Network/networkInterfaces/{existing-nic-name}",
          "properties": {
            "primary": true
          }
        }
      ]
    },
    "osProfile": {
      "adminUsername": "{your-username}",
      "computerName": "myVM",
      "adminPassword": "{your-password}"
    },
    "diagnosticsProfile": {
      "bootDiagnostics": {
        "storageUri": "http://{existing-storage-account-name}.blob.core.windows.net",
        "enabled": true
      }
    }
  }
}';

$arr = json_decode($json2, true);
$arr['location'] = "eastus";
$arr['properties']['hardwareProfile']['vmSize'] = "Standard_D3_v2";
$arr['properties']['storageProfile']['imageReference']['sku'] = "20h1-evd";
$arr['properties']['storageProfile']['imageReference']['publisher'] = "MicrosoftWindowsDesktop";
$arr['properties']['storageProfile']['imageReference']['offer'] = "WindowsServer";
$updatedJson = json_encode($arr);

print_r($updatedJson);

首先您需要尝试 json_decode 从这个 json 文件创建一个数组，然后根据您需要找到您想要的属性的数组模式并更新它然后再次使用 json_encode 制作 json

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