我已经使用了twitter oauth和facebook library来登录我的网站。它工作正常之前，现在它不工作:(。我调试了代码，并知道推特访问令牌和秘密不返回。对于facebook登录，它也没有得到用户id。
步骤1:下载facebook库。https://github.com/facebook/facebook-php-sdk/tree/master/src
步骤2:上传到'application'libraries
步骤3:创建facebook应用程序。您将获得appId和密码。将下面的代码粘贴到控制器facebook()函数中。设置appId和secret
$config = array(
'appId' => '234353465466',
'secret' => 'xxxxxxxxxxxxxxxxxxxxxxxxxxxx',
'fileUpload' => true, // Indicates if the CURL based @ syntax for file uploads is enabled.
);
$this->load->library('Facebook',$config);
$user = $this->facebook->getUser();
if($user){
try {
$profile = $this->facebook->api('/me?fields=id,name,link,email');
}
catch (FacebookApiException $e) {
$user = null;
}
echo '<pre>';
print_r($profile);
步骤4:将以下代码粘贴到视图页面，并更改appId和域名。
<div id="fb-root"></div>
<script type="text/javascript">// <![CDATA[
window.fbAsyncInit = function() {
FB.init({appId: '234463456', status: true, cookie: true,xfbml: true,oauth: true});};
(function() {
var e = document.createElement('script');
e.type = 'text/javascript';
e.src = document.location.protocol+'//connect.facebook.net/en_GB/all.js';
e.async = true;
document.getElementById('fb-root').appendChild(e);
}());
function login()
{
FB.getLoginStatus(function(response) {
if (response.status === 'connected') {
document.location.href = "http://www.mydomain.com/facebook?accessToken="+response.authResponse.accessToken;
}
});
}
// ]]></script>
<fb:login-button scope="email" onlogin="login();" >Sign in with Facebook</fb:login-
查看更多- http://www.livey.info/blog/category/php/codeigniter/