从Facebook graphObject读取数据 [英] Reading data from Facebook graphObject

问题描述

用户已经接受了我的Facebook应用程序。我现在可以访问他们的一些数据。它作为 graphObject 返回，其中包含以下内容：

A user has accepted my Facebook app. I can now access some of their data. It is returned as a graphObject, which contains something like:

Facebook\ GraphObject Object（[backingData：protected] => Array（[id] => 11111 [first_name] => Bob [gender] => male [last_name] => Builder [link] => https://www.facebook.com/app_scoped_user_id/11111/ [locale] => de_DE [name] => Bob Builder [timezone] => 2 [ updated_time] => 2014-02-14T14：35：54 + 0000 [已验证] => 1））

Facebook\GraphObject Object ( [backingData:protected] => Array ( [id] => 11111 [first_name] => Bob [gender] => male [last_name] => Builder [link] => https://www.facebook.com/app_scoped_user_id/11111/ [locale] => de_DE [name] => Bob Builder [timezone] => 2 [updated_time] => 2014-02-14T14:35:54+0000 [verified] => 1 ) )

不幸的是我无法得到在该对象内的数据。读取它像一个数组抛出一个错误：

Unfortunately I cannot get at the data inside this object. Reading it like an array throws an error:

$fbid = $graphObject['id']; // Cannot use object of type Facebook\GraphObject as array
$fbid = $graphObject->id; //  Undefined property: Facebook\GraphObject::$id

如何获取ID？

推荐答案

如果您通过使用以下两种方法之一将响应转换为GraphObject：

If you have casted the response as a GraphObject by using one of the following two methods:

// Get the response typed as a GraphLocation
$loc = $response->getGraphObject(GraphLocation::className());

// or convert the base object previously accessed
// $loc = $object->cast(GraphLocation::className());

您可以使用 Get 图形对象，具体取决于您将其转换为什么样的对象...以下是 GraphUser 对象的示例：

You can use the Get properties of the graph object, depending on what kind of object you've casted it as... here's an example for the GraphUser Object:

echo $user->getName();

或者，如果您知道属性的名称（如基本数据所示），您可以使用 getProperty（）：

Or, if you know the name of the property (as shown in the base data), you can use getProperty():

echo $object->getProperty('name');

所以在您的示例中，您可以使用以下内容获取 id property：

So in your example, you can use the following to get the id property:

echo $user->getProperty('id');

这里有更多的例子和文档

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