Question

我有一个JSON对象，我试图迭代来计算对象内有多少值。

我的JSON;

[{
    "accountId": "1746756959",
    "containerId": "7454209",
    "containerVersionId": "7",
    "container": {
        "accountId": "1746756959",
        "containerId": "7454209"
    },
    "tag": [{
        "accountId": "1746756959",
        "name": "Universal Analytics",
        "parameter": [{
            "key": "overrideGaSettings",
            "type": "boolean",
            "value": "false"
        }]
    }, {
        "accountId": "1746756959",
        "parameter": [{
            "key": "detectTitle",
            "type": "boolean",
            "value": "true"
        }]
    }, {
        "accountId": "1746756959",
        "name": "contentEngagement",
        "parameter": [{
            "key": "html",
            "type": "template",
            "value": "<script>\n\n<\/script>"
        }]
    }],
    "trigger": [{
        "accountId": "1746756959",
        "name": "Trigger 1",
        "workspaceId": null
    }, {
        "accountId": "1746756959",
        "name": "Trigger 2",
        "workspaceId": null
    }, {
        "accountId": "1746756959",
        "containerId": "7454209",
        "fingerprint": "1507893475158",
        "name": "Trigger 3",
        "notes": null,
        "parentFolderId": null,
        "path": null,
        "tagManagerUrl": null,
        "triggerId": "13",
        "type": "windowLoaded",
        "workspaceId": null
    }],
    "variable": [{
        "accountId": "1746756959",
        "containerId": "7454209",
        "disablingTriggerId": null,
        "enablingTriggerId": null,
        "fingerprint": "1505216399119",
        "name": "Google Analytics Settings",
        "notes": null,
        "parentFolderId": null,
        "path": null,
        "scheduleEndMs": null,
        "scheduleStartMs": null,
        "tagManagerUrl": null,
        "type": "gas",
        "variableId": "1",
        "workspaceId": null,
        "parameter": [{
            "key": "cookieDomain",
            "type": "template",
            "value": "auto"
        }]

    }]
}]

当我尝试迭代并打印出值时，我可以这样做，但是当我计算它时，我会得到(1 1 1)的结果，应该有(3)。我怀疑它与foreach有关。我的PHP代码如下所示：

   foreach($LiveContainer as $item) {
            foreach ($item['tag'] as $accountPath) {
                echo count($accountPath->name); echo "<br>";
            }}

结果：

1 1 1

我想要的是计算tag中有多少项。

PS：我从JSON中删除了很多，因为它很长，maby“名称”并非在所有标签中都可用，对不起

由于

Answer 1

foreach($LiveContainer as $item) {
    echo count($item['tag']); echo "<br>";
}

PHP count（）总是返回1

1 个答案: