Failed to connect to graph.facebook.com port 443: Connection refused - php

Question

I am new to FB graph API and I try to include the FB login in my website, I following the official FB login tutorial from their website, But after login I get the following error:
Failed to connect to graph.facebook.com port 443: Connection refused
Login.php
<?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 'Log in with Facebook!';
?>
login-callback.php
<?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) {
// 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)) {
// Logged in!
$_SESSION['facebook_access_token'] = (string) $accessToken;
// Now you can redirect to another page and use the
// access token from $_SESSION['facebook_access_token']
}
?>
example-canvas-app.php
<?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) {
// 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)) {
// Logged in.
}
?>
I already searched in stack and google but I can't find any solution

Answer 1

Hostinger's free server does not allow a connection to Fb's SDK as mentioned by their customer service.