//this is what is expected to be in my external php script
 require_once_or_include('a_phpmyprepaid_file.php')

 //a new user is added to freeradius database via phpmyprepaid
 insert_add_create_new_user_function('bill','clinton','30',"some_attributes...");

 // after 30 days this user is deleted/disconnected from freeradius database...