Facebook Getting a Users Groups (Having Problems) - facebook

Question

Ive searched high and low for an answer to this on here but havent been able to find anything. Please answer if you can, its appreciated.
The Setup:
Im learning how to work with the PHP Facebook API SDK by using one of the examples as a base. Im new to working with APIs so Im a little confused and have been having a problem trying to list a users groups.
The Question:
Ive got the app made. Ive got the proper permissions and extended permissions. I am able to get the users name and basic info.
I think my problem comes with the access token required to access the extended permission needed to get a users groups. Im not sure if Im sending it to the API correctly.
This is what Ive got:
<?
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 {
$access_token = $facebook->getAccessToken();
$user_profile = $facebook->api('/me','GET');
$user_groups = $facebook->api('/me/groups','GET', array( 'access_token=' => $access_token ));
echo "Name: " . $user_profile['name'];
echo "<br />";
echo "Groups: " . $user_groups['name'];
} 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.
$args['scope'] = 'user_groups,user_likes';
$login_url = $facebook->getLoginUrl($args);
echo 'Please login.';
error_log($e->getType());
error_log($e->getMessage());
}
} else {
// No user, print a link for the user to login
$args['scope'] = 'user_likes,user_groups';
$login_url = $facebook->getLoginUrl($args);
echo 'Please login.';
}
?>
Any help is appreciated.
Thanks.

Answer 1

I'm not exactly sure, but here are a few points:
There's no reasons to manually add the access token when using a facebook sdk, those will add the access token for you. Should be:
$user_groups = $facebook->api('/me/groups','GET');
The format of the json encoded result for the "/me/groups" is completely different than of the "/me".
Where the result for "/me" is just a set of key/value data, the result for "/me/groups" is wrapped inside a "data" parameter which is an array of objects.
As it states in the User Object documentation (under the groups connection):
An array of objects containing the version(old-0 or new Group-1),
name, id, administrator (if user is the administrator of the Group)
and bookmark_order(at what place in the list of group bookmarks on the
homepage, the group shows up for the user).
When in doubt about how facebook responses to different queries, use the Graph Explorer tool with which you can test the different queries and see the responses that facebook returns.
For example the result for /me and the result for /me/groups