There is a built-in function that you can use, instead of globals. The get_current_screen()
function allows you to get the information associated with the current page.
One of its return values is post_type
. So you can check against an array of post types to see if anyone matches.
function fhaac_admin_enqueue_scripts(){
$screen = get_current_screen();
if (
in_array( $screen->post_type, array('fhaac','blabla')) &&
$screen->base == 'post'
) { // Do something }
}