验证FACEBOOK应用程序-PHP [英] Authenticating a FACEBOOK Application - PHP

问题描述

我需要先进行身份验证，然后才能发布到我自己的墙上，所以这是我的代码

i need to authenticate before posting to my own wall, so here is my code

function get_app_token($appid, $appsecret)
{
$args = array(
'grant_type' => 'client_credentials',
'client_id' => $appid,
'client_secret' => $appsecret
);

$ch = curl_init();
$url = 'https://graph.facebook.com/oauth/access_token';
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_HEADER, false);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $args);
$data = curl_exec($ch);

return json_encode($data);
}

$token = get_app_token($appid, $appsecret);
$attachment = array('message' => '',
        'access_token' => $token,
                'name' => 'Attachment Name',
                'caption' => 'Attachment Caption',
                'link' => 'http://apps.facebook.com/xxxxxx/',
                'description' => 'Description .....',
                'picture' => 'http://www.google.com/logo.jpg',
                'actions' => array(array('name' => 'Action Text', 
                                  'link' => 'http://apps.facebook.com/xxxxxx/'))
                );

$result = $facebook->api('/me/feed/', 'post', $attachment);

我收到错误 OAuthException ，无效的OAuth访问令牌签名.

i got error OAuthException ,Invalid OAuth access token signature.

推荐答案

您可以直接从facebook对象的会话数组中获取access_token.

you can get access_token from session array of facebook object directly.

$session = $facebook->getSession();
$session['access_token'];

当然您需要被授权.如果未设置会话，则必须重定向到loginUrl

of course you need to be authorized. if session is not set you must redirect to loginUrl

$facebook->getLoginUrl(array('req_perms' => 'email,read_stream,publish_stream'));
// this will return url for your authorization

并请求您所需的权限.

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