<?php

//Global configuration
define('CS_CONSUMER_KEY', '');
define('CS_CONSUMER_SECRET', '');
<?php

//Global configuration
define('CS_CONSUMER_KEY', '');
define('CS_CONSUMER_SECRET', '');
define('CS_RETURN_PATH', 'http://cs.local/connect.php?response=true');

Add example return path to config and use constant
Add example return path to config and use constant