Class files and includes

[linusx007]

Hello,
I need to know what the procedure is for including a file in a class file and calling the variables. I have tried the following:

class guestbook
{
include("config.inc");

function something()
{
call a variable;
}
}

and the contents of the config.inc file is:

$TITLE = "this";
$BGCOLOR = "#ffffff";

I have also tried:

var $TITLE = "this";

Thanks for the help.