如何访问由 Google 日历 Api 返回的 JSON 对象

How to access JSON object returned by Google Calendar Api

我正在使用这段代码来捕获来自 Google 日历 API

的异常
//authorize the client
      try{
          $client = $this->gcal_sync_auth($crm_user_id);
        }
      catch (Exception $ex) 
        {
      $message = $ex->getMessage();
      die("could not connect ". $message);
        }

$ex->getMessage() 工作正常,returns 异常消息作为字符串,但格式如下。我从来没有遇到过这样的数组。它看起来像 JSON 但似乎格式不正确。我怎么能只 access/print "Invalid email or User ID" 而没有其余的呢。

    Google_Auth_Exception Object
(
    [message:protected] => Error refreshing the OAuth2 token, message: '{
  "error" : "invalid_grant",
  "error_description" : "Invalid email or User ID"
}'
    [string:Exception:private] => 
    [code:protected] => 400
    [file:protected] => xxx/application/third_party/Google_API/src/Google/Auth/OAuth2.php
    [line:protected] => 364
    [trace:Exception:private] => Array
        (
            [0] => Array
                (
                    [file] => xxx/application/third_party/Google_API/src/Google/Auth/OAuth2.php
                    [line] => 315
                    [function] => refreshTokenRequest
                    [class] => Google_Auth_OAuth2
                    [type] => ->
                    [args] => Array
                        (
                            [0] => Array
                                (
                                    [grant_type] => assertion
                                    [assertion_type] => http://oauth.net/grant_type/jwt/1.0/bearer
                                    [assertion] =>
                                    [serviceAccountName] =>              xxxxx@xxxxxx.iam.gserviceaccount.com
                                    [scopes] => https://www.googleapis.com/auth/calendar
                                    [privateKey] =>

这是我现在在朋友的帮助下工作的方式。希望它能帮助别人。您可以将其直接内联到您的代码中,如下所示,或者将其放入函数中以重用它。

try{
    $client = $this->gcal_sync_auth($crm_user_id);
   }
 catch (Google_Auth_Exception $ex) {
    $parts = explode("'", $ex->getMessage());
     array_pop($parts);
     array_shift($parts);
    $error = json_decode(implode("'", $parts));
 }

然后您可以通过

访问 JSON 中的 error_description
$error->error_description