I am trying to use the examples provided under Facebook PHP SDK 5.0 to login to Facebook. I am getting back 500 Internal Server Error. I am using the Baby Plan from HostGator which is running Php 5.5.27 PHP INFO . Is there configuration I would need to add to my server to get things working?
login.php
<?php session_start(); // Include the required dependencies. require_once( 'vendor/autoload.php' ); // Initialize the Facebook PHP SDK v5. $fb = new Facebook\Facebook([ 'app_id' => '495994870548274', 'app_secret' => '593f18b375c9e23d34b9794136cf7158', 'default_graph_version' => 'v2.3', ]); $helper = $fb->getRedirectLoginHelper(); $permissions = ['email']; // Optional permissions $loginUrl = $helper->getLoginUrl('http://techcomsgb.com/kidneytest/login-callback.php', $permissions); echo '<a href="' . $loginUrl . '">Log in with Facebook!</a>' login-callback.php
<?php session_start(); // Include the required dependencies. require_once( 'vendor/autoload.php' ); // Initialize the Facebook PHP SDK v5. $fb = new Facebook\Facebook([ 'app_id' => '495994870548274', 'app_secret' => '593f18b375c9e23d34b9794136cf7158', 'default_graph_version' => 'v2.3', ]); $helper = $fb->getRedirectLoginHelper(); try { $accessToken = $helper->getAccessToken(); } catch(Facebook\Exceptions\FacebookResponseException $e) { // When Graph returns an error echo 'Graph returned an error: ' . $e->getMessage(); exit; } catch(Facebook\Exceptions\FacebookSDKException $e) { // When validation fails or other local issues echo 'Facebook SDK returned an error: ' . $e->getMessage(); exit; } if (! isset($accessToken)) { if ($helper->getError()) { header('HTTP/1.0 401 Unauthorized'); echo "Error: " . $helper->getError() . "\n"; echo "Error Code: " . $helper->getErrorCode() . "\n"; echo "Error Reason: " . $helper->getErrorReason() . "\n"; echo "Error Description: " . $helper->getErrorDescription() . "\n"; } else { header('HTTP/1.0 400 Bad Request'); echo 'Bad request'; } exit; } // Logged in echo '<h3>Access Token</h3>'; var_dump($accessToken->getValue()); // The OAuth 2.0 client handler helps us manage access tokens $oAuth2Client = $fb->getOAuth2Client(); // Get the access token metadata from /debug_token $tokenMetadata = $oAuth2Client->debugToken($accessToken); echo '<h3>Metadata</h3>'; var_dump($tokenMetadata); // Validation (these will throw FacebookSDKException's when they fail) $tokenMetadata->validateAppId($config['app_id']); // If you know the user ID this access token belongs to, you can validate it here //$tokenMetadata->validateUserId('123'); $tokenMetadata->validateExpiration(); if (! $accessToken->isLongLived()) { // Exchanges a short-lived access token for a long-lived one try { $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()); } $_SESSION['fb_access_token'] = (string) $accessToken; // User is logged in with a long-lived access token. // You can redirect them to a members-only page. //header('Location: https://example.com/members.php');
