login.php
<?php
include 'config.php';
$permissions = ['email']; // Optional permissions
$loginUrl = $helper->getLoginUrl('https://www.example.com/callback.php', $permissions);
echo '<a href="' . htmlspecialchars($loginUrl) . '">Log in with Facebook!</a>';
?>
config.php
<?php
require_once "Facebook/autoload.php";
$fb = new \Facebook\Facebook([
'app_id' => '',
'app_secret' => '',
'default_graph_version' => 'v2.10'
]);
$helper = $fb->getRedirectLoginHelper();
if(isset($_GET['state']))
{
$helper->getPersistentDataHandler()->set('state', $_GET['state']);
}
?>
callback.php
<?php
session_start();
include 'config.php';
try {
$accessToken = $helper->getAccessToken();
} catch(Facebook\Exceptions\FacebookResponseException $e) {
echo 'Graph returned an error: ' . $e->getMessage();
exit;
} catch(Facebook\Exceptions\FacebookSDKException $e) {
echo 'Facebook SDK returned an error: ' . $e->getMessage();
exit;
}
if(!isset($accessToken)) {
header('Location: https://www.example.com/');
}else{
// Logged in
echo '<h3>Access Token7</h3>';
var_dump($accessToken->getValue());
if (!$accessToken->isLongLived()) {
try {
echo "entered";
// The OAuth 2.0 client handler helps us manage access tokens
$oAuth2Client = $fb->getOAuth2Client();
$accessToken = $oAuth2Client->getLongLivedAccessToken($accessToken);
}
catch (Facebook\Exceptions\FacebookSDKException $e)
{
echo "<p>Error getting long-lived access token: " . $helper->getMessage() . "</p>\n\n";
exit;
}
echo '<h3>Long-lived</h3>';
var_dump($accessToken->getValue());
}
$response = $fb->get('/me?fields=id,name,email,first_name,last_name,picture', $accessToken->getValue());
$user = $response->getGraphUser();
$_SESSION["fb_access_token"] = (string)$accessToken;
$_SESSION["userData"] = $user;
header('Location: https://www.example.com/members.php');
}
?>
members.php
<?php
session_start();
echo "hii";
echo $_SESSION["userData"]["name"];
?>
In callback.php, session and header(its not redirecting to members.php) is not working, but when I open members.php manually, I am able to pring hii
Can you please suggest where I am doing wrong?
