To get a user's friends, you can use the following code:
$jfbcLibrary = JFBConnectFacebookLibrary::getInstance();
$friends = $jfbcLibrary->api('/me/friends?fields=id,name,link,picture');
$friends = $friends['data'];From there, you'll have an array of friend data with their id, name, link, and picture.
For Likes, you'll need to make sure you're requesting the user_likes permission. That can be added in the Configuration -> Facebook API area of JFBConnect. Then, you can do something similar to the above:
$jfbcLibrary = JFBConnectFacebookLibrary::getInstance();
$likes = $jfbcLibrary->api('/me/likes');I haven't tested Likes before, but I'm pretty sure that's all there is to it. For more information on fetching Like's, please see:
developers.facebook.com/docs/reference/api/user/#likes
I hope that helps, but if you need anything else, run into issues, or have have any questions, just let me know.
Thanks,
Alex