I am making an application which needs to get friends of the current user
if ($user) {
$user_profile = $facebook->api('/me');
$friends= $facebook->api('/me/friends');
}
// Login or logout url will be needed depending on current user state.
if ($user) {
$logoutUrl = $facebook->getLogoutUrl();
} else {
$params = array('scope' => 'user_status,publish_stream,user_photos, user_friends');
$loginUrl = $facebook->getLoginUrl( $params);
}
Now, the problem I am facing is that the friends list returns empty for my current app. For an older app, albeit it works fine. The new app is public and I checked in the Status and Reciew area where it says that the app has user_friends permission by default. I can't seem to understand what's wrong with this/
Per https://developers.facebook.com/docs/apps/changelog#v2_0_login, user_friends now only gives access to friends using the same app, not all friends.
Related
i try to do a login with facebook, i build this code:
<?php
ob_start();
include("facebook_constants.php"); // in this file i have appid and appsecretid
$users = $facebook->getUser();
if ($users!="") {
try {
$user_profile = $facebook->api('/me','GET');
$logoutUrl = $facebook->getLogoutUrl();
$fuserid=$user_profile["id"]; // give me the id of the user
$fusername=$user_profile["name"]; // give me the name of the user
$femail=$user_profile["email"]; // give me the email of the user
$fusernamenew = str_replace(' ', '', $fusername); // change the name to username (omer lol = omerlol)
$newtoken=base64_encode($fuserid."::".$fusernamenew."::".$femail); // data to token
$itsme = $this->haimz->DB->num_rows("SELECT id FROM users WHERE fbid = ?haimz?", $fuserid); // if have user with that id = login , if not goto register page
if($itsme > 0){
echo "goto login page";
}
else{
echo "goto register page";
exit;
}
} catch (FacebookApiException $e) {
$users = null;
}
}
?>
the $fuserid give me other userid but the $fusername and $femail give me the correct .
its not the userid of the user.
its other userid.
https://developers.facebook.com/docs/apps/changelog
To better protect people's information, when people log into a version of your app that has been upgraded to use Graph API v2.0, Facebook will now issue an app-scoped ID rather than that person's orginal ID. However, for users that have previously logged into your app, the user ID will not change.
You don´t get the "real" ID of a user anymore, for privacy reasons. You only get an App Scoped ID that is unique in the App only. You can still use it to identify the user when he returns to your App with the App Scoped ID, it will only be different in another App.
You can also map App Scoped IDs between different Apps with the Business Mapping API, if needed: https://developers.facebook.com/docs/apps/for-business
Do you have an example of how to confirm that the person trying to access the content of your app is a member of a specific facebook group, using php? I've read through the developer docs and all it managed to do was confuse me even more. I've seen posts similar to this one but they only show me how to print a list of members...
I need to know how to get the list and see if the user trying to access the app is a member of the group so that I can either a: allow access or b: deny access and re-direct the user to the group page so they can request membership...
Yes its pretty simple, you just need to know the ID of the group you want to do that and ask for the scope user_groups permission, so you can query the groups the user have.
With the PHP SDK you can do this:
<?php
// Remember to copy files from the SDK's src/ directory to a
// directory in your application on the server, such as php-sdk/
require_once('php-sdk/facebook.php');
$config = array(
'appId' => 'YOUR_APP_ID',
'secret' => 'YOUR_APP_SECRET',
);
$facebook = new Facebook($config);
$user_id = $facebook->getUser();
if($user_id) {
// We have a user ID, so probably a logged in user.
// If not, we'll get an exception, which we handle below.
try {
$user_profile = $facebook->api('/me?fields=id,name,groups','GET');
$user_belongs_to_group= FALSE;
foreach($user_profile['groups']['data'] as $group){
if($group['id']==YOUR_GROUP_ID)
$user_belongs_to_group=TRUE;
}
if($user_belongs_to_group){
//Alright! the user belongs to the group
}
else{
//Oh snap you don't belong here, but you can if want to
}
} catch(FacebookApiException $e) {
// If the user is logged out, you can have a
// user ID even though the access token is invalid.
// In this case, we'll get an exception, so we'll
// just ask the user to login again here.
$login_url = $facebook->getLoginUrl();
echo 'Please login.';
error_log($e->getType());
error_log($e->getMessage());
}
} else {
// No user, print a link for the user to login
$login_url = $facebook->getLoginUrl();
echo 'Please login.';
}
?>
Some of this code I grabbed from the facebook, you can see the data that is returned when query for groups here: https://developers.facebook.com/tools/explorer
Press the plus sign after the name go to connections, choose groups and press send
You are in a catch-22, you will need the user to grant permission to his groups via the user_groups permission.
I am trying to integrate my Codeigniter website with the Facebook PHP SDK. What I want to do is let a user share an article from my site on their facebook wall, if they are logged into a facebook account. My library appears to load correctly, but everytime I try to do something, I get some kind of error... primarily with the auth. getUser does not appear to return the correct results. I set up my facebook application and set the config vars for my library, but no luck. It says I am not logged into facebook. When I click on the "login" anchor, the link takes me to the same page, but with the facebook url, and doesn't ask me to login with the app. Here's my code:
function facebook($article_id){
$config = array(
'appId' => '276870792431073',
'secret' => '8d49eee575413fb9a8063d22f65dbf6a'
);
$this->load->library('facebook', $config);
$user = $this->facebook->getUser();
if($user){
try {
$user_profile = $this->facebook->api('/me');
} catch (FacebookApiException $e){
error_log($e);
$user = null;
}
}
if($user){
$article = $this->article->fetch_article($article_id);
$config = array(
'message' => 'I just read an '.anchor('articles/'.url_title($article['title']).'/'.$article_id, 'article').' on '.anchor('', 'TrackTheOutbreak.com').'!',
);
$this->facebook->api('/me/feed', 'post', $config);
} else {
$data['MESSAGE_TITLE'] = 'Authentication Error';
$data['MESSAGE_TEXT'] = 'You must be logged into an existing Facebook account to use this feature. Click '.anchor($this->facebook->getLoginUrl(), 'here').' to login.';
$this->parser->parse('error_body.tpl', $data);
}
}
In order to access a users information and post anything to their wall you first need to get a access token from them. To do that you need to make sure that you have gained their permission through Facebook's FB_login (and then Open Graph). I would double check with this guide and make sure that you have everything set up properly to post to their timeline.
https://developers.facebook.com/docs/reference/javascript/FB.login/
I hope this helps
I want to get user access token because I need to get user's posts and comments.
When I use Graph API Explorer, the access token it generates is correct one and shows me my posts and comments and some other data. But when try to get posts and comments by using this code than it does not return me posts and comments and return some other data only which i don't need.
require_once('facebook.php');
$config = array(
'appId' => '383128895071077',
'secret' => '6a9ab479186f53db5c531a3fa5f91be0',
);
$facebook = new Facebook($config);
$access_token = $facebook->getAccessToken();
$result = $facebook->api('/me/feed/', array('access_token' => $access_token));
I searched all the google and get access token by different ways but I could not get posts and comments of me. I must be doing something wrong and need to sort out this as soon as possible.
Thanks in advance.
You should check this example
Facebook php sdk example
you should check whether we have user access token like this
// Get User ID
$user = $facebook->getUser();
// We may or may not have this data based on whether the user is logged in.
//
// If we have a $user id here, it means we know the user is logged into
// Facebook, but we don't know if the access token is valid. An access
// token is invalid if the user logged out of Facebook.
if ($user) {
try {
// Proceed knowing you have a logged in user who's authenticated.
$user_profile = $facebook->api('/me');
} catch (FacebookApiException $e) {
error_log($e);
$user = null;
}
}
// Login or logout url will be needed depending on current user state.
if ($user) {
$logoutUrl = $facebook->getLogoutUrl();
} else {
$loginUrl = $facebook->getLoginUrl();
}
Once we get the user details, you can ensure that user is logged into app and authorized the app.
For feeds
You should have extended permissions read_stream
then you can read the wall feed.
I am using javascript sdk to know if user is login and connected to our web-site' application by using FB.getLoginStatus() function.
I want to know if php-sdk provides me details about the user logged into facebook.
If user is logged in facebook and connected to our application, i have to make them to directly logged into our site.
How can this be done using php sdk.
Thanks in advance.
You can do the following:
$user_details=$fb->api_client->users_getInfo($fb_user, array('last_name','first_name','pic_square'));
And yes they do have a similar thing to the FB.getLoginStatus() :)
$params = array(
'ok_session' => 'https://www.myapp.com/',
'no_user' => 'https://www.myapp.com/no_user',
'no_session' => 'https://www.myapp.com/no_session',
);
$next_url = $facebook->getLoginStatusUrl($params);
Found it here: https://developers.facebook.com/docs/reference/php/facebook-getLoginStatusUrl/
Just check the Example/Usage at the GitHub-Page:
https://github.com/facebook/facebook-php-sdk
according to documentation ( https://github.com/facebook/facebook-php-sdk ), after doing:
require 'facebook-php-sdk/src/facebook.php';
$facebook = new Facebook(array(
'appId' => 'YOUR_APP_ID',
'secret' => 'YOUR_APP_SECRET',
));
// Get User ID
$user = $facebook->getUser();
To check if the user is still logged in on facebook (kind of FB.getLoginStatus) you need to:
if ($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;
}
}
As noted by #DMCS this function should be used:
http://developers.facebook.com/docs/reference/php/facebook-getLoginStatusUrl/
You generate an url: $next_url = $facebook->getLoginStatusUrl();
redirect the user to this url: header('Location: '.$next_url);
the user will be returned by FB with session information (POST) about the login status
the SDK will parse the return $_POST info
use $facebook->getUser(); to get the userid (if logged in)
So far so good. The only problem is, this function (point 4) is broken since the transition to oAuth2.0 by Facebook, see also this bug report:
http://developers.facebook.com/bugs/295348980494364
So please let FB know that you have the same issue by adding a reproduction.
Cheers!