我们可以使用Facebook登录来允许用户访问网站.这个页面将向您解释有关使用Facebook PHP SDK登录的信息.
需要去 https://developers.facebook.com/apps/然后点击添加一个新的组按钮来制作应用ID.
选择网站
提供应用名称，然后单击"创建新的Facebook应用程序ID"
单击"创建应用程序ID"
点击跳过快速测试
在最后阶段，它将显示如下图所示.
下载zip
现在打开fbconfig.php文件并添加应用程序ID和应用程序Secrete
FacebookSession::setDefaultApplication( 'your app ID','App Secrete ' );
// login helper with redirect_uri
$helper = new FacebookRedirectLoginHelper('You web address' );最后fbconfig.php文件如下所示 :
<?php
session_start();
// added in v4.0.0
require_once 'autoload.php';
use Facebook\FacebookSession;
use Facebook\FacebookRedirectLoginHelper;
use Facebook\FacebookRequest;
use Facebook\FacebookResponse;
use Facebook\FacebookSDKException;
use Facebook\FacebookRequestException;
use Facebook\FacebookAuthorizationException;
use Facebook\GraphObject;
use Facebook\Entities\AccessToken;
use Facebook\HttpClients\FacebookCurlHttpClient;
use Facebook\HttpClients\FacebookHttpable;
// init app with app id and secret
FacebookSession::setDefaultApplication( '496544657159182','e6d239655aeb3e496e52fabeaf1b1f93' );
// login helper with redirect_uri
$helper = new FacebookRedirectLoginHelper('http://www.IT屋.com/' );
try {
$session = $helper->getSessionFromRedirect();
}catch( FacebookRequestException $ex ) {
// When Facebook returns an error
}catch( Exception $ex ) {
// When validation fails or other local issues
}
// see if we have a session
if ( isset( $session ) ) {
// graph api request for user data
$request = new FacebookRequest( $session, 'GET', '/me' );
$response = $request->execute();
// get response
$graphObject = $response->getGraphObject();
$fbid = $graphObject->getProperty('id'); // To Get Facebook ID
$fbfullname = $graphObject->getProperty('name'); // To Get Facebook full name
$femail = $graphObject->getProperty('email'); // To Get Facebook email ID
/* ---- Session Variables -----*/
$_SESSION['FBID'] = $fbid;
$_SESSION['FULLNAME'] = $fbfullname;
$_SESSION['EMAIL'] = $femail;
/* ---- header location after session ----*/
header("Location: index.php");
}else {
$loginUrl = $helper->getLoginUrl();
header("Location: ".$loginUrl);
}
?>登录页面用于登录FB
<?php
session_start();
session_unset();
$_SESSION['FBID'] = NULL;
$_SESSION['FULLNAME'] = NULL;
$_SESSION['EMAIL'] = NULL;
header("Location: index.php");
?>索引页面如下所示.
<?php session_start(); ?> <html xmlns:fb = "http://www.facebook.com/2008/fbml"> <head> <title>Login with Facebook</title> <link href = "http://www.bootstrapcdn.com/twitter-bootstrap/2.2.2/css/bootstrap-combined.min.css" rel = "stylesheet"> </head> <body> <?php if ($_SESSION['FBID']): ?> <!-- After user login --> <div class = "container"> <div class = "hero-unit"> <h1>Hello <?php echo $_SESSION['USERNAME']; ?></h1> <p>Welcome to "facebook login" tutorial</p> </div> <div class = "span4"> <ul class = "nav nav-list"> <li class = "nav-header">Image</li> <li><img src = "https://graph.facebook.com/<?php echo $_SESSION['FBID']; ?>/picture"></li> <li class = "nav-header">Facebook ID</li> <li><?php echo $_SESSION['FBID']; ?></li> <li class = "nav-header">Facebook fullname</li> <li><?php echo $_SESSION['FULLNAME']; ?></li> <li class = "nav-header">Facebook Email</li> <li><?php echo $_SESSION['EMAIL']; ?></li> <div><a href="logout.php">Logout</a></div> </ul> </div> </div> <?php else: ?> <!-- Before login --> <div class = "container"> <h1>Login with Facebook</h1> Not Connected <div> <a href = "fbconfig.php">Login with Facebook</a> </div> <div> <a href = "http://www.IT屋.com" title = "Login with facebook">More information about Tutorialspoint</a> </div> </div> <?php endif ?> </body> </html>
它将产生结果.在尝试此示例之前，请在浏览器中注销您的面部图书帐户.
以下代码用于退出facebook.
<?php
session_start();.
session_unset();
$_SESSION['FBID'] = NULL;
$_SESSION['FULLNAME'] = NULL;
$_SESSION['EMAIL'] = NULL;
header("Location: index.php");
?>
