<h2>Son Kayıt Olan Üyeler</h2>
<ul>
<?php
$kullanicilar = $wpdb->get_results("SELECT user_nicename, user_url FROM $wpdb->users ORDER BY ID DESC LIMIT 5");

foreach ($kullanicilar as $kullanici) {
    echo '<li><a href="'.$kullanici->user_url.'">'.$kullanici->user_nicename."</a></li>";
}
?>
</ul>