In continuare, în pagina noastră vom adăuga butonul de Facebook Login/Logout.
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:fb="http://www.facebook.com/2008/fbml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
<title>FBApps</title>
</head>
<body>
<h1>FBApps</h1>
<p><fb:login-button autologoutlink="true"></fb:login-button></p>
<p><fb:like></fb:like></p>
<div id="fb-root"></div>
<script>
window.fbAsyncInit = function() {
FB.init({appId: '160960950619062', status: true, cookie: true,
xfbml: true});
};
(function() {
var e = document.createElement('script');
e.type = 'text/javascript';
e.src = document.location.protocol +
'//connect.facebook.net/ro_RO/all.js';
e.async = true;
document.getElementById('fb-root').appendChild(e);
}());
</script>
</body>
</html>
exemplul preluat de pe developers.facebook.com.
Pe partea de server vom prealua cu php un obiect de tip json, care in urma acceptului utilizatorului ca anumite informatii de pe profilul sau de facebook sa fie utilizate de aceasta aplicatie.
if(isset($_COOKIE['fbs_' . $YOUR_APP_ID]))
{
$cookie = get_facebook_cookie($YOUR_APP_ID, $YOUR_APP_SECRET);
$user = json_decode(file_get_contents('https://graph.facebook.com/me?access_token='.$cookie['access_token']));
if ($cookie)
{
if (!isset($_SESSION['user_id']) ||
$_SESSION['user_id'] == -1)
{
verifyUser($user);
}
//echo"<p class='welcome'> Welcome <span>". $user->name.'</span></p>';
}
}
function get_facebook_cookie($app_id, $application_secret)
{
$args = array();
parse_str(trim($_COOKIE['fbs_' . $app_id], '\\"'), $args);
ksort($args);
$payload = '';
foreach ($args as $key => $value)
if ($key != 'sig')
$payload .= $key . '=' . $value;
if (md5($payload . $application_secret) != $args['sig'])
return null;
return $args;
}
//in functia verifyUser($user) putem verifica existenta userului in baza de date.(daca userul este nou il adaugam in propria baza de date)
Exemplu:
Niciun comentariu:
Trimiteți un comentariu