View file chat/count.php
<?php
if (isset($user)) {
dbquery("DELETE FROM `chat_who` WHERE `id_user` = '$user[id]'");
}
dbquery("DELETE FROM `chat_who` WHERE `time` < '" . ($time - 120) . "'");
echo dbresult(dbquery("SELECT COUNT(*) FROM `chat_who`"), 0) . ' человек';