I am completely new to integrating the FB graph API into my website and have been following the official FB login tutorial provided on their website. Despite following the steps, I encountered this error after attempting to log in:
Failed to connect to graph.facebook.com port 443: Connection refused
In my login.php file:
<?php
session_start();
require_once __DIR__ . '/fbsdk/src/Facebook/autoload.php';
$fb = new Facebook\Facebook([
'app_id' => 'xxx',
'app_secret' => 'xxx',
'default_graph_version' => 'v2.3',
// . . .
]);
$helper = $fb->getRedirectLoginHelper();
$permissions = ['public_profile', 'email']; // optional
$loginUrl = $helper->getLoginUrl('http://-myserver-/login-callback.php', $permissions);
echo '<a href="' . $loginUrl . '">Log in with Facebook!</a>';
?>
Inside my login-callback.php file:
<?php
session_start();
require_once __DIR__ . '/fbsdk/src/Facebook/autoload.php';
$fb = new Facebook\Facebook([
'app_id' => 'xxx',
'app_secret' => 'xxx',
'default_graph_version' => 'v2.3',
// . . .
]);
$helper = $fb->getRedirectLoginHelper();
try {
$accessToken = $helper->getAccessToken();
} catch(Facebook\Exceptions\FacebookResponseException $e) {
// Handling Graph errors
echo 'Graph returned an error: ' . $e->getMessage();
exit;
} catch(Facebook\Exceptions\FacebookSDKException $e) {
// Handling SDK errors
echo 'Facebook SDK returned an error: ' . $e->getMessage();
exit;
}
if (isset($accessToken)) {
// Successfully logged in!
$_SESSION['facebook_access_token'] = (string) $accessToken;
// Redirecting to another page and utilizing the access token from $_SESSION['facebook_access_token']
}
?>
And in my example-canvas-app.php file:
<?php
session_start();
require_once __DIR__ . '/fbsdk/src/Facebook/autoload.php';
$fb = new Facebook\Facebook([
'app_id' => 'xxx',
'app_secret' => 'xxx',
'default_graph_version' => 'v2.3',
// . . .
]);
$helper = $fb->getCanvasHelper();
try {
$accessToken = $helper->getAccessToken();
} catch(Facebook\Exceptions\FacebookResponseException $e) {
// In case of a Graph error
echo 'Graph returned an error: ' . $e->getMessage();
exit;
} catch(Facebook\Exceptions\FacebookSDKException $e) {
// Handling validation failures or other local issues
echo 'Facebook SDK returned an error: ' . $e->getMessage();
exit;
}
if (isset($accessToken)) {
// User has successfully logged in.
}
?>
I've tried searching extensively on Stack Overflow and Google for a solution, but unfortunately, haven't found one yet.