javascript - 无法从 PHP 和 Javascript 检索 JSON 值

Question

我在下面有以下 JSON，我想解析并获取TotalRows. 但是，在我的 PHP 和 JavaScript 中，当我尝试访问它时它会返回错误或未定义，我不知道为什么。

---

对于 JavaScript：

var data = <?php echo json_encode($customers); ?>;
console.log(data.TotalRows)

我什至放置console.log(data)了它，它给了我我发布的 JSON，然后我做了console.log(data[0].TotalRows)，它给了我未定义的。

---

我的 PHP 代码是，其中$customers返回以下 JSON：

$customers = $customerDB->findCustomer(5, 1);
$arr = json_decode($customers, true);
echo $arr["TotalRows"];

---

[
   {
      "TotalRows":91,
      "Rows":[
         {
            "CompanyName":"Ana Trujillo Emparedados y helados",
            "ContactName":"Ana Trujillo",
            "ContactTitle":"Owner",
            "City":"M\u00e9xico D.F.",
            "Country":"Mexico"
         },
         {
            "CompanyName":"Antonio Moreno Taquer\u00eda",
            "ContactName":"Antonio Moreno",
            "ContactTitle":"Owner",
            "City":"M\u00e9xico D.F.",
            "Country":"Mexico"
         },
         {
            "CompanyName":"Around the Horn",
            "ContactName":"Thomas Hardy",
            "ContactTitle":"Sales Representative",
            "City":"London",
            "Country":"UK"
         },
         {
            "CompanyName":"Berglunds snabbk\u00f6p",
            "ContactName":"Christina Berglund",
            "ContactTitle":"Order Administrator",
            "City":"Lule\u00e5",
            "Country":"Sweden"
         },
         {
            "CompanyName":"Blauer See Delikatessen",
            "ContactName":"Hanna Moos",
            "ContactTitle":"Sales Representative",
            "City":"Mannheim",
            "Country":"Germany"
         }
      ]
   }
]

标签： javascriptphpjson

Answer 1

它是一个对象数组，所以你会得到 TotalRows

  console.log(data[0].TotalRows);