oauth with facebook - php

Question

I am trying to get if user is logined in facebook, if yes then I need to store their profile pic url, name in my db, so that users can comment in my web application.
I cant do this, I created a facebook application for website and using the following code for auth purpose. But its showing "An error occurred. Please try again later."
Any one please help me ? or help me with working code ?
<?php
require_once('../src/facebook.php');
$fb_app_id = "key";
$fb_secret = "secret";
$fb_app_url = "url";
$facebook = new Facebook(array(
'appId' => $fb_app_id,
'secret' => $fb_secret,
'cookie' => true,
));
$user = $facebook->getUser();
if ($user) {
// The user is logged in
try {
$user_profile = $facebook->api('/me');
// Here : API call succeeded, you have a valid access token
} catch (FacebookApiException $e) {
// Here : API call failed, you don't have a valid access token
// you have to send him to $facebook->getLoginUrl()
$user = null;
}
} // else : the user is not logged in
?>
<?php if ($user): ?>
Logout of Facebook
<?php else: ?>
Login with Facebook
<?php endif ?>

Answer 1

You can try this
require_once('../src/facebook.php');
$facebook = new Facebook(array(
'appId' => 'xxxxxxxxxxxx',
'secret' => 'xxxxxxxxxxxx',
'cookie' => true,
));
$fb_user_id = $facebook->getUser();
try
{
$fb_user_profile = $facebook->api('/me');
$me = $facebook->api('/me');
}
catch (FacebookApiException $e)
{
$fb_user_id = NULL;
}
$fbid = $me['id'];
$firstname = $me["first_name"];
$lastname = $me["last_name"];
$gender = $me["gender"];
$email = $me["email"];
if ($facebook->getSession()) {
echo '<div id="fbc-img"><img src="http://graph.facebook.com/'.$me['id'].'/picture?type=normal" width="56" height="56"></div>
<div id="fbc-info">Welkom, '.$firstname.' ! <br>Logout </div> ';
} else {
echo 'Login met facebook ';
}