На должно работать !
$total = @mysql_result(mysql_query("SELECT COUNT(*) FROM `qchat`"), 0);
$total_new = @mysql_result(mysql_query("SELECT COUNT(*) FROM `qchat` WHERE `time`> '" . (time() - (3600 * 24)) . "'", 0);
echo '<div class="phdr"><a href="/qchat">Быстрый чат</a>(' . $total . '/<div class="red">+' . $total_new . '</div>)</div>';