Facebook Connect Script

Use this Facebook Connect script when you want to let your users to login or do stuff on your site without having to create an account.

<?
/* 
	For this to work you will have to download the Facebook PHP SDK
	https://github.com/facebook/php-sdk/
*/
require('facebook.php');
/*
	Set these variables to application's ones
*/
$app_id = 'application id here';
$app_secret = 'application secret here';
// init fb object
$facebook = new Facebook(array(
	'appId'		=> $app_id,
	'secret'	=> $app_secret,
	'cookie'	=> false
));
// get a session for user
$session = $facebook->getSession();
$me = null;
// if have session get user data
if ($session)
{
	try
	{
		$uid = $facebook->getUser();
		$me = $facebook->api('/me');
	}
	catch(FacebookApiException $e)
	{
		error_log($e);
	}
}
// if we have user data show logout button, else show login button with extended permission to get his email addy
$data = '';
if ($me)
{
	// store user data here!!!
	print_r($me);
	$logoutUrl = $facebook->getLogoutUrl();
	$data = '<a href="'.$logoutUrl.'"><img src="http://static.ak.fbcdn.net/rsrc.php/z2Y31/hash/cxrz4k7j.gif"></a>';
}
else
{
	$loginUrl = $facebook->getLoginUrl(array('req_perms' => 'email,read_stream'));
	$data = '<a href="'.$loginUrl.'"><img src="http://static.ak.fbcdn.net/rsrc.php/zB6N8/hash/4li2k73z.gif"></a>';
}
// for javascript side use the same session
$fb_session = json_encode($session);
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <title>Login with Facebook!</title>
</head>
<body>
	<p>Hello!</p>
    <div id="fb-root"></div>
    <script type="text/javascript" src="http://connect.facebook.net/en_US/all.js"></script>
    <script type="text/javascript">
    //<![CDATA[
    FB.init({
		appId: '<?=$app_id;?>', 
		cookie: true, 
		status: true, 
		xfbml: true, 
		session: <?=$fb_session;?>
	});
    FB.Event.subscribe('auth.login', function(){
		window.location.reload();
	});
    //]]>
    </script>
</body>
</html>

Usage

How to use it:
Don't forget to download the PHP SDK. Test this script on a PHP page
to see how it works and then try to integrate it in your pages.

This Facebook Connect script will also request permission from the user
to give to your website access to his e-mail address.

You can see that in line 36 is where you get user's data.

Code with Love.

Comments

Posted on 18.12.2012 03:48 by guest

change $facebook->getSession() to $facebook->getUser()

Posted on 31.08.2012 11:20 by guest

where is the file "facebook.php"?. I need it!!

Posted on 13.07.2012 11:29 by guest

Thanks a lot!! After Log in.. I want to take user details.. U r code helped me.. :)

Posted on 03.07.2012 13:27 by guest

I already change getSession() to getUser(). Why It doesn't show Facebook Connect button to login?

Posted on 29.05.2012 20:13 by guest

where is the file "facebook.php"?. I need it!!

Posted on 13.03.2012 07:48 by guest

this is outdated code.

Posted on 03.03.2012 08:16 by steve

Actually this code is kinda old, needs to be updated to new FB API standards.

Posted on 03.03.2012 08:12 by guest

getSession() is depreciated use getuser()

Posted on 13.12.2011 12:22 by guest

hmmmmm

Posted on 22.09.2011 13:10 by guest

Hi
It is giving following error:
Fatal error: Call to undefined method Facebook::getSession() in facebook-connect-script.php on line 19

Posted on 15.08.2011 07:10 by guest

Well i want to get user information like User Name,User Email , Status , User Pic
etc kindly help me......

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