<?php
        function countNewRegisteredUsers() {
            global $wpdb;
            $sql = "SELECT COUNT(*) as countNewUser FROM wp_users WHERE DATE(user_registered) = DATE(CONCAT(year(now()), '-', month(now()), '-', day(now())));";
            return (int) $wpdb->get_var($sql);
        }
    
        function txt_func() {
            return _e('New members', 'buddypress') . " " . countNewRegisteredUsers();
        }