如果我在我的网站上放置登录按钮,用户将能够只登录 - 实际上不需要注册,我如何确保“用户”实际注册(所以我可以保存数据)我的数据库)才能真正登录?
我的索引代码......
<?php
require '../src/facebook.php';
$facebook = new Facebook(array(
'appId' => '*id trimmed*',
'secret' => '*secret trimmed*',
));
// See if there is a user from a cookie
$user = $facebook->getUser();
if ($user) {
try {
// Proceed knowing you have a logged in user who's authenticated.
$user_profile = $facebook->api('/me');
} catch (FacebookApiException $e) {
echo '<pre>'.htmlspecialchars(print_r($e, true)).'</pre>';
$user = null;
}
}
?>
<!DOCTYPE html>
<html xmlns:fb="http://www.facebook.com/2008/fbml">
<body>
<?php if ($user) { ?>
Your user profile is
<pre>
<?php print htmlspecialchars(print_r($user_profile, true)) ?>
</pre>
<?php } else { ?>
<fb:login-button>Logga in med Facebook</fb:login-button>
<?php } ?>
<div id="fb-root"></div>
<script>
window.fbAsyncInit = function() {
FB.init({
appId: '<?php echo $facebook->getAppID() ?>',
cookie: true,
xfbml: true,
oauth: true
});
FB.Event.subscribe('auth.login', function(response) {
window.location.reload();
});
FB.Event.subscribe('auth.logout', function(response) {
window.location.reload();
});
};
(function() {
var e = document.createElement('script'); e.async = true;
e.src = document.location.protocol +
'//connect.facebook.net/en_US/all.js';
document.getElementById('fb-root').appendChild(e);
}());
</script>
</body>
</html>
答案 0 :(得分:0)
只需将facebook中的用户ID与您的数据库进行比较(如果存在)&gt;登录,否则 - &gt;寄存器:
// ...
if ($user) {
try {
// Proceed knowing you have a logged in user who's authenticated.
$user_profile = $facebook->api('/me');
} catch (FacebookApiException $e) {
echo '<pre>'.htmlspecialchars(print_r($e, true)).'</pre>';
$user = null;
}
}
if ($user)
{
$id = $user_profile['id']; // facebook user id;
// now use this $id to compare with your database saved user facebook user id
// if not exists, then create user, else update login counter or only get profile
}
//...