采用行写方式的聊天程序（之五）

核心提示：lt4.php 处理定时刷新问题 <? session_start(); include("g_fun.php"); f_connectdb(); $tmpi = 0; $query= "select lt_id,lt_speaker,lt_face,lt_speaked,lt_ti

lt4.php
处理定时刷新问题
<?
session_start();
include("g_fun.php");
f_connectdb();

$tmpi = 0;
$query　= "select lt_id,lt_speaker,lt_face,lt_speaked,lt_time,lt_content from lt_t_content";
$query .= "　where lt_id > ".$chat_hh. " order by lt_time ";
$res = MySQL_query($query, $dbh);　
while ($row = mysql_fetch_array($res)) {　
　 ?>
　 <script Language=javaScript1.1>
　 var zt="<? echo '0'; ?>";
　 var un="<?echo $row['lt_speaker'];?>";
　 var tw="<?echo $row['lt_speaked'];?>";
　 var sa="<?echo $row['lt_content'];?>";
　 parent.f2.nw(zt,un,tw,sa);　　//向显示处写入最新的数据.
　 </script>
　 <?
　 $tempi=$row['lt_id'];
}
if ($tempi > $chat_hh) {
　$chat_hh = $tempi;
}
?>
<script Language=Javascript>
setTimeout('this.location.reload()',5000);</script>

ltonline.php
处理在线用户信息

<?
　include("g_fun.php");
　f_connectdb();

　//删除长时间没有发言的用户信息
　$query　= "update　lt_t_online set lt_state = '1' where (now() - lt_lasttime) > 500";
　$res = mysql_query($query, $dbh);　
　 
　PRint " 在线人员信息<br>";
　$query　= "select lt_username from lt_t_online where lt_state = '0'";
　$res = mysql_query($query, $dbh);　
　while ($row = mysql_fetch_array($res)) {　
　　print $row["lt_username"].'<br>';
　}
?>
<script Language=JavaScript>
setTimeout('this.location.reload()',5000);</script>



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