<?php
$k_p = mysql_result(mysql_query("SELECT COUNT(*) FROM `diary`", $db), 0);
$k_n = mysql_result(mysql_query("SELECT COUNT(*) FROM `diary` WHERE `time` > '" . (time() - 86400) . "'", $db), 0);
if ($k_n == 0) {
$k_n = NULL;
} else {
$k_n = " | <font color='red'>+$k_n</font>";
}
echo " <span class = 'count'>";
echo "$k_p$k_n";
echo "</span>";