Variable global scope [closed]

Question

I'm trying to create a few custom post types, and instead of hard-coding their names I just want to define them as a globally scoped variable. I thought I understood the scope but apparently not. The code below results in an error of Undefined variable:

$filmLabel = "Films";
$showLabel = "Shows";
function CreatePostTypes() {
    register_post_type( $filmLabel, GenerateFilmType($filmLabel));
    register_post_type( $showLabel, GenerateFilmType($showLabel));
}
add_action( 'init', 'CreatePostTypes' );

I've tried using $GLOBAL as well, with the same result. Can anyone spot what's wrong?

Answer 1

Globals are generally discourgaged. You can use define instead.

<?php
define("FILM_LABEL", "Films");
define("SHOW_LABEL", "Shows");
function CreatePostTypes() {
    register_post_type( FILM_LABEL, GenerateFilmType( FILM_LABEL ) );
    register_post_type( SHOW_LABEL, GenerateFilmType( SHOW_LABEL ) );
}
add_action( 'init', 'CreatePostTypes' );