用PHP提取json字符串

问题描述

我从 API 收到的 JSON 字符串

{"accesstokenResponse":{"token":"562371e99fda4296a380547cb5bf9fab","token_type":"Bearer","expires_in_seconds":"77476","client_id":"LTcyMDI1NDI0OQ==","responseStatus":{"code":"100000","message":"Service operation completed successfully","messageDetails":"Access token assigned."}}}

我想提取的信息

562371e99fda4296a380547cb5bf9fab //-->The Token

我的尝试

<?PHP
    $user = "LTcyMDI1NDI0OQ==";
    $password = "MjAzMDI5MTU";
    $returnFormat = "json";
    $url = "https://sandBox.dhlecommerce.asia/rest/v1/OAuth/Accesstoken?clientId=".$user.
    "&password=".$password."&returnFormat=".$returnFormat."";
    $method = "GET";
    $headers = array(
        "content-type: application/json",);

    $curl = curl_init();

    curl_setopt_array($curl,array(
        CURLOPT_RETURNTRANSFER => true,CURLOPT_URL => $url,CURLOPT_CUSTomrEQUEST => $method,CURLOPT_HTTPHEADER => $headers,));

    $response = curl_exec($curl);
    $err = curl_error($curl);   

    $result = json_decode($response);

    curl_close($curl);   

    if ($err) {
        echo "cURL Error #:" . $err;
    } else {
        echo $result->token;                
    }
?>

输出：

Warning: Undefined property: stdClass::$token in C:\xampp\htdocs\Tracking\getToken.PHP on line 31

我收到的 JSON 字符串格式错误吗？

为什么显示未定义的属性？感谢任何帮助。谢谢！

我参考的帖子： How do I extract data from JSON with PHP?

解决方法

token 在 accessTokenResponse 对象中，所以：

echo $result->accessTokenResponse->token;

curl curl get json