WordPress User Role Generator

function register_user_role() {
	add_role(
		'author',
		'Author',
		array(
			// Pick capabilities above, or add them here.
		)
	);
}
// add_role() returns early when the role already exists, so running this on
// every request is harmless. register_activation_hook() is the better home for
// it if this snippet lives in a plugin.
add_action( 'init', 'register_user_role' );