// The first authenticate() is from the page, and the second is due to an API call.
// This checks if there was already a phpcas instance already initialized, otherwize
// phpCAS::client() would fail.
// The first authenticate() is from the page, and the second is due to an API call.
// This checks if there was already a phpcas instance already initialized, otherwize
// phpCAS::client() would fail.