Publishing to User's Facebook Wall with Facebook PHP SDK - php

Question

I'm integrating my web-based game to a Facebook Game . Facebook login, getting user id, getting user profile picture is OK . But i need to post somethings to wall (For example, John Doe earned 50 point!) .
I have offline_access and publish_Stream permissions for my Facebook App.
Now i want to publish some links automatically. I'm using Facebook PHP SDK with Yii.
I can get Facebook User ID etc... But i don't know how can i post somethings to user's wall, automatically (for example when user is offline).
I'm looking Graph API Post document's Publishing title. But i need access_token parameter for use this. And i'm not sure where is this access_token .

Answer 1

PHP-SDK 3.1.1
To generate app and user tokens. $app_access_token & $access_token
*The user access_token if you have offline access will never expire, unless user deAuthorizes your app. You would need to use for posting to a users wall when they are offline or not interacting with your application.*
<?php
require './src/facebook.php';
$facebook = new Facebook(array(
'appId' => '135669679827333',
'secret' => 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxx',
));
$user = $facebook->getUser();
if ($user) {
try {
// Proceed knowing you have a logged in user who's authenticated.
$user_profile = $facebook->api('/me');
} catch (FacebookApiException $e) {
error_log($e);
$user = null;
}
}
if ($user) {
$logoutUrl = $facebook->getLogoutUrl();
} else {
$loginUrl = $facebook->getLoginUrl();
}
// Create Application Access Token
$app_access = "https://graph.facebook.com/oauth/access_token?client_id=135669679827333&client_secret=xxxxxxxxxxxxxxxxxxxxxxxx&grant_type=client_credentials";
$app_access_token = file_get_contents($app_access);
// If we have a user who is logged in, create access_token with session.
if ($user) {
$access_token = $_SESSION['fb_135669679827333_access_token'];
}
?>

Answer 2

Take a look at the authentication doc which will show you how to get an access token.

Answer 3

you can get access token like this
$access_token = $session['access_token'];
now use $access_token where u need it
$my_friends_ids=file_get_contents("https://graph.facebook.com/me/friends?access_token=".$access_token);
here i am getting ids of all my friends