Passing variables to vBulletin on non-vB pages

[inthezone]

It looks like that will let me include an entire file, but I don't see how it lets me include a single variable.

Another issue is that the $headline variable can change multiple times within the script:

PHP Code:

switch ($action) {
case add:
    $headline = "Add Item";
    break;
case delete:
    $headline = "Delete Item";
    break;
case edit:
    $headline = "Edit Item";
    break;
} 


Would the above be possible with plugins?