Cómo obtener el rol de un usuario de manera efectiva

$curauth = $wp_query->get_queried_object();
$user_id = $curauth->ID;
$user = new WP_User( $user_id );
if ( !empty( $user->roles ) && is_array( $user->roles ) ) {
	foreach ( $user->roles as $role )
		echo $role;
}

/**
 * Returns the translated role of the current user. If that user has
 * no role for the current blog, it returns false.
 *
 * @return string The name of the current role
 **/
function get_current_user_role() {
	global $wp_roles;
	$current_user = wp_get_current_user();
	$roles = $current_user->roles;
	$role = array_shift($roles);
	return isset($wp_roles->role_names[$role]) ? translate_user_role($wp_roles->role_names[$role] ) : false;
}