accessible via a browser that contains these files: index.php callback.php EpiCurl.php EpiFoursquare.php EpiOAuth.php Note: Depending on your server configuration you may need to manually enable cURL support. I did this example using XAMPP and needed to turn it on. In the php.ini file (C:\xampp\php\php.ini) uncomment the line “extension=php_curl.dll” and then restart