[Resolved] Include/Require Problem

[The Hobo]

This problem has really bothered me for a long time, but I've just tried to get around it. Now it's getting to be annoying, so I'm hoping there's a solution.

I'm having a problem including/requiring a file within a function, and still having variables it created be defined through a few more function calls. I know that probably doesn't make sense, so I trimmed down my code to the bare-minimum for an example.

index.php is the main page, which calls a display.php (for displaying news in my program). display.php calls config.php, which simply loads configuration variables into an array.

index.php
<?php
    // There would normally be some type of if structure
    // here, that's why a function is needed:

    main();

    function main() {
        require 'display.php';

        execute();
    }
?>

display.php
<?php
    require 'config.php';

    function execute() {
        global $CONFIG;

        echo 'The var: ' . $CONFIG['name'];
    }
?>

config.php
<?php
    // this usually loads values form a database
    $CONFIG['name'] = 'value';
?>

Now, the execute() function of display.php is supposed to output a variable value, but no dice.

My question to you is, what can I do to make this work, besides fudging around in the index.php file (since I want my users to be able to call it however they need to)?