如何获取访问令牌facebook api正确的方法？

Question

刚刚玩facebook api但无法获得基本设置.从facebook SDK下载了sdk .我似乎无法使访问令牌工作

$fb = new Facebook\Facebook([
  'app_id' => 'keyxx',
  'app_secret' => 'key',
  'default_graph_version' => 'v2.4',
  ]);
$helper = $fb->getRedirectLoginHelper();

  $accessToken = $helper->getAccessToken();

try {
  // Returns a `Facebook\FacebookResponse` object
  $response = $fb->get('/me?fields=id,name',$accessToken);
} catch(Facebook\Exceptions\FacebookResponseException $e) {
  echo 'Graph returned an error: ' . $e->getMessage();
  exit;
} catch(Facebook\Exceptions\FacebookSDKException $e) {
  echo 'Facebook SDK returned an error: ' . $e->getMessage();
  exit;
}

$user = $response->getGraphUser();

echo 'Name: ' . $user['name'];

?>

忘记提到我的应用程序是一个画布这是另一个尝试重定向哪个不起作用.我只看到一块空白画布

<?php

require_once 'facebook-php-sdk-v4/src/Facebook/autoload.php';
session_start()
echo 'hello';



$fb = new Facebook\Facebook([
  'app_id' => 'x',
  'app_secret' => 'y',
  'default_graph_version' => 'v2.4',
  'default_access_token' => isset($_SESSION['facebook_access_token']) ? $_SESSION['facebook_access_token'] : 'x|y'

  ]);


try {
  $response = $fb->get('/me?fields=id,name');
  $user = $response->getGraphUser();
  echo 'Name: ' . $user['name'];
  exit; //redirect, or do whatever you want
} catch(Facebook\Exceptions\FacebookResponseException $e) {
  //echo 'Graph returned an error: ' . $e->getMessage();
} catch(Facebook\Exceptions\FacebookSDKException $e) {
  //echo 'Facebook SDK returned an error: ' . $e->getMessage();
}

$helper = $fb->getRedirectLoginHelper();
$permissions = ['email', 'user_likes'];
$loginUrl = $helper->getLoginUrl('http://www.unsquaringthewheel.com/newTemp/login-callback.php', $permissions);
echo '<a href="' . $loginUrl . '">Log in with Facebook!</a>';

?>

这是回调登录页面

<?php
require_once 'facebook-php-sdk-v4/src/Facebook/autoload.php';

session_start();

$fb = new Facebook\Facebook([
  'app_id' => 'x',
  'app_secret' => 'y',
  'default_graph_version' => 'v2.4',
  'default_access_token' => 'x|y'
]);

$helper = $fb->getRedirectLoginHelper();

try {
  $accessToken = $helper->getAccessToken();
} catch(Facebook\Exceptions\FacebookResponseException $e) {
  // When Graph returns an error
  //echo 'Graph returned an error: ' . $e->getMessage();
} catch(Facebook\Exceptions\FacebookSDKException $e) {
  // When validation fails or other local issues
  //echo 'Facebook SDK returned an error: ' . $e->getMessage();
}

if (isset($accessToken)) {
  // Logged in!
  $_SESSION['facebook_access_token'] = (string) $accessToken;
} elseif ($helper->getError()) {
  // The user denied the request
}
header('Location: index.php');

Answer 1

$fb = new Facebook\Facebook([
  'app_id' => '{app-id}',
  'app_secret' => '{app-secret}',
  'default_graph_version' => 'v2.4'
  ]);

$res = $fb->get('/me', '{access-token}');

参考