如何解決OAuth 2.0中的access_token

Question

我正在努力獲取登錄的用戶詳細信息。它出現在錯誤後面。

公告：未定義的屬性：stdClass的:: $中的access_token C：\ XAMPP \ htdocs中\谷歌\ OAuth的\ validate.php上線46

這是我的代碼：

<?php 
//setting parameters 
$authcode= $_GET["code"]; 
$clientid='my'; 
$clientsecret='my'; 
$redirecturi='https://localhost/google/oauth/validate.php'; 
$fields=array(
'code'=> urlencode($authcode), 
'client_id'=> urlencode($clientid), 
'client_secret'=> urlencode($clientsecret), 
'redirect_uri'=> urlencode($redirecturi), 
'grant_type'=> urlencode('authorization_code') 
); 
//url-ify the data for the POST 
$fields_string=''; 
foreach($fields as $key=>$value) { $fields_string .= $key.'='.$value.'&'; } 
$fields_string=rtrim($fields_string,'&'); 
//open connection 
$ch = curl_init(); 
//set the url, number of POST vars, POST data 
curl_setopt($ch,CURLOPT_URL,'https://accounts.google.com/o/oauth2/token'); 
curl_setopt($ch,CURLOPT_POST,5); 
curl_setopt($ch,CURLOPT_POSTFIELDS,$fields_string); 
// Set so curl_exec returns the result instead of outputting it. 
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); 
//to trust any ssl certificates 
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); 
//execute post 
$result = curl_exec($ch); 
//close connection 
curl_close($ch); 
//extracting access_token from response string 
$response= json_decode($result); 
$accesstoken= $response->access_token; 
//passing accesstoken to obtain contact details 
$xmlresponse= file_get_contents('https://www.google.com/m8/feeds/contacts/default /full?oauth_token='.$accesstoken); 
//reading xml using SimpleXML 
$xml= new SimpleXMLElement($xmlresponse); 
$xml->registerXPathNamespace('gd', 'http://schemas.google.com/g/2005'); 
$result = $xml->xpath('//gd:email'); 
foreach ($result as $title) { 
echo $title->attributes()->address . "<br><br>"; 
} 
?> 

Answer 1

的Google APIs PHP Client有一個示例應用程序演示如何獲取經過身份驗證的用戶的聯繫人列表。

示例應用程序還演示瞭如何通過OAuth 2.0流程並獲取訪問令牌。

例子： http://code.google.com/p/google-api-php-client/source/browse/trunk/examples/contacts/simple.php