Get current user role

Its easy to get the currently logged-in user role by using the global variable $current_user. Following function can be used to get the current user's role.

if(!function_exists('custom_get_current_user_role')) {
    function custom_get_current_user_role(){
         if(is_user_logged_in()) {
            global $current_user;
            $user_role = $current_user->roles[0];
            return $user_role;
        }
        return FALSE;
    }
}