Php Facebook SDK 4-获取用户数据
我遵循了一个在线教程，它几乎可以工作。代码看起来像这样。尝试使用Php Facebook SDK 4-获取用户数据,php,facebook,facebook-graph-api,Php,Facebook,Facebook Graph Api,我遵循了一个在线教程，它几乎可以工作。代码看起来像这样。尝试使用require\u一次\uuuu DIR\uuuu。“/Facebook/autoload.php”但它返回致命错误：找不到类“Facebook\FacebookSession” 编辑** 像建议的那样添加autoload.php session_start(); require __DIR__ . "/facebook-php-sdk-v4-4.0-dev/autoload.php"; use Facebook\
require\u一次\uuuu DIR\uuuu。“/Facebook/autoload.php”但它返回致命错误：找不到类“Facebook\FacebookSession”
编辑**
像建议的那样添加autoload.php
session_start();
require __DIR__ . "/facebook-php-sdk-v4-4.0-dev/autoload.php";
use Facebook\HttpClients\FacebookHttpable;
use Facebook\HttpClients\FacebookCurl;
use Facebook\HttpClients\FacebookCurlHttpClient;
use Facebook\Entities\AccessToken;
use Facebook\Entities\SignedRequest;
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\GraphUser;
use Facebook\GraphSessionInfo;
use Facebook\GraphLocation;
use Facebook\FacebookOtherException;
$appId = 'xxx';
$appSecret = 'xxx';
$redirect_url = 'http://example.com/com/login';
//initialize Facebook
FacebookSession::setDefaultApplication($appId, $appSecret);
$helper = new FAcebookRedirectLoginHelper($redirect_url);
try {
$session = $helper->getSessionFromRedirect();
} catch(FacebookRequestException $ex) {
die(" Error : " . $ex->getMessage());
} catch(\Exception $ex) {
die(" Error : " . $ex->getMessage());
}
var_dump($_SESSION['fb_token']); //Notice: Undefined index: fb_token
if ( isset( $_SESSION ) && isset( $_SESSION['fb_token'] ) ) {
$session = new FacebookSession($_SESSION['fb_token']);
}
if($session) {
//store token in php session
$_SESSION['fb_token'] = $session->getToken();
try {
$user = (new FacebookRequest(
$session, 'GET', '/me'
))->execute()->getGraphObject(GraphUser::className())->asArray();
} catch(FacebookRequestException $e) {
}
$name = $user['name'];
$firstName = $user['first_name'];
$lastName = $user['last_name'];
$fbId = $user['id'];
$fbEmail = $user['email'];
}else{
echo "No session!";
}
这是登录url，位于每个页面的标题中。我将不包括全部代码，但以下内容仅由未登录的访问者看到：
<?php
echo '<li class=" fb right"><a href="'.$helper->getLoginUrl().'" ><img style="height: 29px;" src="img/login_fb.png" alt="Facebook Log in" /></a> </li>';
?>
- 有时fb_令牌未设置。当有人单击登录url时，他们将被重定向到登录页面，并显示
无令牌
消息。如果在登录页面上再次单击登录url，则一切正常
编辑**
- 出于某种原因，现在它根本检测不到fb_令牌。即使我登录了Facebook。这很奇怪，因为直到现在我才有这个问题
Facebook PHP Sdk在使用access_令牌时存在一些问题，特别是在
你有漂亮的（seo友好的）URL
使用Facebook的JSSDK让用户访问令牌是更好的选择。
一旦您拥有了用户的访问权\u令牌
，就可以使用AJAX
因此，您的索引
文件如下所示：
<html xmlns:fb="http://ogp.me/ns/fb#">
<head>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.2/jquery.min.js"></script>
</head>
<body>
<!----facebook js sdk---->
<div id="fb-root"></div>
<script>
window.fbAsyncInit = function() {
FB.init({
appId: 'PASTE YOUR APP ID',
cookie: true,
xfbml: true,
version: 'v2.1'
});
};
function Login() {
FB.login(function(response) {
if (response.authResponse) {
/*AJAX call to send access_token to php file.*/
jQuery.ajax({
url: 'facebook.php',
/*facebook.php is the file where we'll make API request to get user data.*/
type: 'POST',
data: {
'access_token': response.authResponse.accessToken /*this is the access_token provided by Facebook.We are passing it to our facebook.php file. */
},
success: function(result) {
var res = result;
if (res) {
document.getElementById("fb_status").innerHTML = res;
}
}
});
}
}, {
scope: 'email,user_friends,user_location,user_events,publish_actions'
});
}
/*function Logout(){
FB.logout(function(response) {
location.reload();
// Person is now logged out
});
}*/
(function(d, s, id) {
var js, fjs = d.getElementsByTagName(s)[0];
if (d.getElementById(id)) {
return;
}
js = d.createElement(s);
js.id = id;
js.src = "//connect.facebook.net/en_US/sdk.js";
fjs.parentNode.insertBefore(js, fjs);
}(document, 'script', 'facebook-jssdk'));
</script>
<!----------------------->
<div id="fb_status"></div> <!--Division to print response just to check every thing is working fine.-->
<a onclick="Login();">Sign In With Facebook</a> <!--Log-In/Sign-In Link-->
</body>
</html>
';
/*现在你有了用户数据，你想用它做什么就做什么。
可能将用户数据存储在数据库中并启动本地会话*/
}捕获（FacebookRequestException$e）{
var_dump（$e）；
}
?>
注意：使用Facebook最新的PHP Sdk：
您单独使用所有这些文件而不是仅使用PHP SDK有什么原因吗？没有原因。我只是觉得这是怎么做到的。
<html xmlns:fb="http://ogp.me/ns/fb#">
<head>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.2/jquery.min.js"></script>
</head>
<body>
<!----facebook js sdk---->
<div id="fb-root"></div>
<script>
window.fbAsyncInit = function() {
FB.init({
appId: 'PASTE YOUR APP ID',
cookie: true,
xfbml: true,
version: 'v2.1'
});
};
function Login() {
FB.login(function(response) {
if (response.authResponse) {
/*AJAX call to send access_token to php file.*/
jQuery.ajax({
url: 'facebook.php',
/*facebook.php is the file where we'll make API request to get user data.*/
type: 'POST',
data: {
'access_token': response.authResponse.accessToken /*this is the access_token provided by Facebook.We are passing it to our facebook.php file. */
},
success: function(result) {
var res = result;
if (res) {
document.getElementById("fb_status").innerHTML = res;
}
}
});
}
}, {
scope: 'email,user_friends,user_location,user_events,publish_actions'
});
}
/*function Logout(){
FB.logout(function(response) {
location.reload();
// Person is now logged out
});
}*/
(function(d, s, id) {
var js, fjs = d.getElementsByTagName(s)[0];
if (d.getElementById(id)) {
return;
}
js = d.createElement(s);
js.id = id;
js.src = "//connect.facebook.net/en_US/sdk.js";
fjs.parentNode.insertBefore(js, fjs);
}(document, 'script', 'facebook-jssdk'));
</script>
<!----------------------->
<div id="fb_status"></div> <!--Division to print response just to check every thing is working fine.-->
<a onclick="Login();">Sign In With Facebook</a> <!--Log-In/Sign-In Link-->
</body>
</html>
<?php
require_once('autoload.php' );
use Facebook\FacebookSession;
use Facebook\FacebookRequest;
use Facebook\GraphUser;
use Facebook\FacebookRequestException;
$app_id = 'PASTE YOUR APP ID HERE';
$app_secret = 'PASTE YOUR APP SECRET HERE';
FacebookSession::setDefaultApplication($app_id, $app_secret);
$session = new FacebookSession($_POST['access_token']); /*$_POST['access_token'] is the access_token we sent to this file in AJAX call. */
/*So now we have your session , we can proceed further by making api request to get user data*/
try{
$me = (new FacebookRequest(
$session, 'GET', '/me'
))->execute()->getGraphObject(GraphUser::className())->asArray();
/* `$me` will hold the user-data provided by Facebook.To check the data just dump this variable like this:*/
echo '<pre>';
var_dump($me);
echo '</pre>';
/*Now You have user data Do whatever you want to do with it.
Probably store user data in the DATABASE & START LOCAL SESSION*/
}catch(FacebookRequestException $e){
var_dump($e);
}
?>