Facebook：在页面上发布页面问题（访问令牌/ php） [英] Facebook: Post on Page as Page issue (access token / php)
问题描述
我想在我的服务器上设置一个cron工作（容易），将在一个Facebook页面（不是我的个人资料），它应该张贴为页面。我把自己编码到一个角落，现在完全感到困惑...任何人都可以帮助吗？
我已经经历了每一个错误信息，现在卡住了
OAuthException：验证应用程序时出错。
这是我现在所在：
第一个php - >获取一个新的访问令牌用于我的页面访问。这个部分似乎工作正常，因为我得到下一个页面，并且接收到一个新的访问令牌。
<？php
require_once'facebook.php';
$ app_id =1234 ....;
$ app_secret =5678 ....;
$ my_url =http：//.../next.php;
$ facebook = new Facebook（array（
'appId'=> $ app_id，
'secret'=> $ app_secret，
'cookie'= > true
））;
//存储在数据库中的已知有效访问令牌
$ access_token =abc ....;
$ code = $ _REQUEST [code];
//如果我们得到一个代码，这意味着我们已经重新创建了用户
//，并且可以获得一个有效的access_token。
if（isset（$ code））{
$ token_url =https://graph.facebook.com/oauth/access_token？
client_id =
。 $ app_id。 & redirect_uri =。 urlencode（$ my_url）
。 & client_secret =。 $ app_secret
。 & code =。 $代码。 &安培;显示=弹出;
$ response = file_get_contents（$ token_url）;
$ params = null;
parse_str（$ response，$ params）;
$ access_token = $ params ['access_token'];
}
//尝试查询图表：
$ graph_url =https://graph.facebook.com/me？
。 access_token =。 $的access_token;
$ response = curl_get_file_contents（$ graph_url）;
$ decoded_response = json_decode（$ response）;
//检查错误
if（$ decoded_response-> error）{
//检查这是否是一个oAuth错误：
if（$ decoded_response-> error-> type ==OAuthException）{
//检索有效的访问令牌。
$ dialog_url =https://www.facebook.com/dialog/oauth？
。 client_id =。 $ app_id
。 & redirect_uri =。进行urlencode（$ my_url）;
echo（< script> top.location.href ='$ dialog_url
。'< / script>）;
} else {
echo其他错误已发生;
}
} else {
// success
echo（success。$ decoded_response-> name）;
}
函数curl_get_file_contents（$ URL）{
$ c = curl_init（）;
curl_setopt（$ c，CURLOPT_RETURNTRANSFER，1）;
curl_setopt（$ c，CURLOPT_SSL_VERIFYPEER，false）;
curl_setopt（$ c，CURLOPT_URL，$ URL）;
$ contents = curl_exec（$ c）;
$ err = curl_getinfo（$ c，CURLINFO_HTTP_CODE）;
curl_close（$ c）;
if（$ contents）return $ contents;
else return FALSE;
}
？>
Next php - >读取访问令牌并在墙上发布。我从查询字符串中获取访问令牌，但是为什么我收到错误消息。我的ID，秘密和页面ID都是按顺序排列的。
<？php
require_once' PHP的;
$ app_id =1234 ....;
$ app_secret =5678 ....;
$ page_id =0909 ....;
$ facebook = new Facebook（array（
'appId'=> $ app_id，
'secret'=> $ app_secret，
'cookie'= > true
））;
$ access_token = $ _GET ['code'];
echo（$ access_token）;
尝试{
$ attachment = array（
'access_token'=> $ access_token，
'message'=>Hello World
）;
$ result = $ facebook-> api（'/'.$ page_id。'/ feed'，'POST'，
$ attachment）;
var_dump（$ result）;
} catch（异常$ e）{
echo $ e;
}
？>
我确定有一个更简单的方法这样做....让它工作！
任何帮助都不胜感激！
我按照这个脚本
从该页面更新Facebook页面状态
和$ $ $ $ $ $ $ $ $ $ $ $ $ ：//developers.facebook.com/blog/post/500rel =nofollow noreferrer> https://developers.facebook.com/blog/post/500
谢谢
从您的代码中，您似乎没有获得所需的PAGE访问令牌，而是使用用户访问令牌，因此为什么API不喜欢它。有关如何从USER获取PAGE访问令牌的详细信息，请参阅页面登录部分rel =nofollow> https://developers.facebook.com/docs/authentication/
I'm totally frustrated with my first facebook app project. I'm having major issues with what seems to be a simple task.
I want to setup a cron job on my server (easy) that will post something smart on a facebook page (not my profile), and it should be posted as page. I coded myself into a corner and am totally confused now... Can anyone help, please?
I've been thru pretty much every error message and am now stuck on "OAuthException: Error validating application."
Here's what I have now:
First php -> Gets a new Access Token for my page access. This part seems to work fine, as I get the next page called and receive a new access token.
<?php
require_once 'facebook.php';
$app_id = "1234....";
$app_secret = "5678....";
$my_url = "http://.../next.php";
$facebook = new Facebook(array(
'appId' => $app_id,
'secret' => $app_secret,
'cookie' => true
));
// known valid access token stored in a database
$access_token = "abc....";
$code = $_REQUEST["code"];
// If we get a code, it means that we have re-authed the user
//and can get a valid access_token.
if (isset($code)) {
$token_url="https://graph.facebook.com/oauth/access_token?
client_id="
. $app_id . "&redirect_uri=" . urlencode($my_url)
. "&client_secret=" . $app_secret
. "&code=" . $code . "&display=popup";
$response = file_get_contents($token_url);
$params = null;
parse_str($response, $params);
$access_token = $params['access_token'];
}
// Attempt to query the graph:
$graph_url = "https://graph.facebook.com/me?"
. "access_token=" . $access_token;
$response = curl_get_file_contents($graph_url);
$decoded_response = json_decode($response);
//Check for errors
if ($decoded_response->error) {
// check to see if this is an oAuth error:
if ($decoded_response->error->type== "OAuthException") {
// Retrieving a valid access token.
$dialog_url= "https://www.facebook.com/dialog/oauth?"
. "client_id=" . $app_id
. "&redirect_uri=" . urlencode($my_url);
echo("<script> top.location.href='" . $dialog_url
. "'</script>");
} else {
echo "other error has happened";
}
} else {
// success
echo("success" . $decoded_response->name);
}
function curl_get_file_contents($URL) {
$c = curl_init();
curl_setopt($c, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($c, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($c, CURLOPT_URL, $URL);
$contents = curl_exec($c);
$err = curl_getinfo($c,CURLINFO_HTTP_CODE);
curl_close($c);
if ($contents) return $contents;
else return FALSE;
}
?>
Next php -> Read the access token and post on the wall. I get the access token from my query string, but then why do I receive the error message. My id, secret and page id are all in order...
<?php
require_once 'facebook.php';
$app_id = "1234....";
$app_secret = "5678....";
$page_id = "0909....";
$facebook = new Facebook(array(
'appId' => $app_id,
'secret' => $app_secret,
'cookie' => true
));
$access_token = $_GET['code'];
echo($access_token);
try {
$attachment = array(
'access_token' => $access_token,
'message'=> "Hello World"
);
$result = $facebook->api('/'.$page_id.'/feed','POST',
$attachment);
var_dump($result);
} catch(Exception $e) {
echo $e;
}
?>
I'm sure there is a simpler way to do so.... and a way to actually make it work! Any help is appreciated!
I followed this script Update facebook page status from that page itself and this https://developers.facebook.com/blog/post/500
Thank you.
From your code, it appears you are not getting a PAGE access token which you need, but instead you're using a USER access token, hence why the API doesn't like it. For more information on how to get a PAGE access token from a USER one, please see the Page login section of https://developers.facebook.com/docs/authentication/
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