Uncaught OAuthException: (#200)，当试图在墙上发帖时

Question

I want to implement a simple posting of messages from my DB to my facebook's wall. Using php-SDK:

require_once 'lib/facebook.php';

$appID = 'xxx';
$secret = 'yyy';
$facebook = new Facebook(array(
    'appId'     =>  $appID,
    'secret'    =>  $secret,
));

$user = $facebook->getUser();
if (empty($user)) {
    header("Location: ". $facebook->getLoginUrl(array(
        'req_perms' =>  'publish_stream',
    )));
    exit();
}

$params = array(
    'message' => 'Hello, every one!',
);
$post_id = $facebook->api('/'. $user .'/feed', 'post', $params);

And i have "Uncaught OAuthException: (#200) The user hasn't authorized the application to perform this action thrown in...".

If I'm not logged in, then when run this script, redirecting to the facebook login. Сonfirm the use of the data is not given.

Answer 1

Here's a working snippet, but make sure you've downloaded the latest PHP SDK ie 3.0.1 If you don't have already, then download it from here: https://github.com/facebook/php-sdk/

If you go through the codes below, you'll pretty much understand what it does, so i don't think i have to explain you more?

<?php

// Requires Facebook PHP SDK 3.0.1: https://github.com/facebook/php-sdk/
require ('facebook.php');

define('FACEBOOK_APP_ID',"YOUR-APP-ID");
define('FACEBOOK_SECRET',"YOUR-APP-API-SECRET");

$user = null;

$facebook = new Facebook(array(
    'appId' => FACEBOOK_APP_ID,
    'secret' => FACEBOOK_SECRET,
    'cookie' => true
));

$user = $facebook->getUser(); // Get the UID of the connected user, or 0 if the Facebook user is not connected.

if($user == 0) {

    /**
     * Get a Login URL for use with redirects. By default, full page redirect is
     * assumed. If you are using the generated URL with a window.open() call in
     * JavaScript, you can pass in display=popup as part of the $params.
     * 
     * The parameters:
     * - redirect_uri: the url to go to after a successful login
     * - scope: comma separated list of requested extended perms
     */

    $login_url = $facebook->getLoginUrl($params = array('scope' => "publish_stream"));

    echo ("<script> top.location.href='".$login_url."'</script>");

} else {

    try {
            $params = array(
                'message'       =>  "Hurray! This works :)",
                'name'          =>  "This is my title",
                'caption'       =>  "My Caption",
                'description'   =>  "Some Description...",
                'link'          =>  "http://stackoverflow.com",
                'picture'       =>  "http://i.imgur.com/VUBz8.png",
            );

            $post = $facebook->api("/$user/feed","POST",$params);

            echo "Your post was successfully posted to UID: $user";

        }
        catch (FacebookApiException $e) {
           $result = $e->getResult();
        }

}

?>