Declaring a global variable inside a function

Question

I have two PHP files. In the first I set a cookie based on a $_GET value, and then call a function which then sends this value on to the other file. This is s

Answer 1

The following works.

";

        bar();
    }

    function bar()
    {
        global $jabberwocky;
        echo $jabberwocky;
    }

?>

to produce:

Jabberwocky
Jabberwocky

So it seems that a variable first declared as global inside a function and then initalised inside that function acquires global scope.