<?php
$user_info = mysql_query("SELECT * FROM `users` WHERE `id` = $site[id] LIMIT 1");
if (mysql_num_rows($user_info) != 0) {
$user_info = mysql_fetch_array($user_info);
echo '<div class="menu"> Добавил: <a href="/users/profile.php?act=user&id='.$user_info['id'].'"> '.$user_info['name'].' </a></div>';
} else {
echo 'Пользователь не найден!';
}