Thanks to Miles for setting me straight on the constant requirement.
I've followed this lead as far as I can take it and here is what I
think I've learned.
1. In the context of database.php it is not possible to define
constants from the $_SERVER superglobal for non-standard elements,
namely,
Okay, let me be more specific in hopes of a response.
My database.php file contains the following class statement:
class DATABASE_CONFIG {
var $default = array(
'driver' = 'mysql',
'persistent' = false,
'host' =
