https://www.facebook.com/v2.2/dialog/oauth?client_id=693932404145867&state=931325d9df001962df90d624e123459c&response_type=code&sdk=php-sdk-5.5.0&redirect_uri=http%3A%2F%2Fmail.gleambee.net%2Ffacebook-php-sdk-5.5%2Flogin.php&scope=public_profile%2Cemail