采用行写方式的聊天程序（之二）

　2000-12-10 16:27:45　来源：WEB开发网　　　

核心提示：lt1.php: 该程序为整个系统的入口，含有两个全局参数：chat_hh,uname分别记录当前最大的发言序号和发言者名称 <? session_start(); session_register("chat_hh"); session_register("uname")

lt1.php:
该程序为整个系统的入口，含有两个全局参数：chat_hh,uname分别记录当前最大的发言序号和发言者名称

<?
session_start();
session_register("chat_hh");
session_register("uname");

//取数据库最大编号
include("g_fun.php");
f_connectdb();
$query　= "select max(lt_id) as rmaxid from lt_t_content";
$res = MySQL_query($query, $dbh);　
$row = mysql_fetch_array($res);
$f_chat_hh =　$row["rmaxid"];
if (empty($f_chat_hh)) { $f_chat_hh = 0; }
if ($f_chat_hh > 12 ) {
　 $chat_hh=$f_chat_hh - 12;
} else
$chat_hh=$f_chat_hh;

$un_len=strlen($name);
$uname=$name;

//增加在线人员信息
$query　= "select count(*) as rcount from lt_t_online where lt_username = '".$name."'";
$res = mysql_query($query, $dbh);　
$row = mysql_fetch_array($res);
$lcount =　$row["rcount"];
if ($lcount == 0) {
　 $query　= "insert into lt_t_online(lt_username,lt_lasttime) values(";
　 $query .= "'".$name."',now())";
　 $res = mysql_query($query, $dbh);　
}
$query　= "update lt_t_online set lt_lasttime = now(),lt_state = '0' ";
$query .= " where lt_username = '".$name."'";
$res = mysql_query($query, $dbh);　
?>
<html>
<head>
<title>PHP无刷新感聊天室</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<script Language=javaScript>
function wu(){
var un="<?echo $name;?>";
this.f2.document.fyq.username.value=un;
this.f2.document.fyq.username.size=<?echo $un_len;?>;
}
</script>
</head>
<frameset cols='*,140' border=1 frameborder=1 framespacing=>
<frameset rows="0,*,70,0" border="1" framespacing="0" frameborder="yes">
　<frame src="about:blank" name="tforlt4">
　<frame src="about:blank" name="f1" marginheight="3" marginwidth="5">
　<frame src="ltsayno.php" name="f2">
　<frame src="about:blank" name="bforlt3">
</frameset>
<frameset rows='*,150' border=1 frameborder=1 framespacing=0>
　<frame src='ltonline.php' name='f3' marginwidth=0 scrolling='auto'>
　<frame src="about:blank" name='f4' marginwidth=0>
</frameset>
</frameset>
<noframes>
<body bgcolor="#FFFFFF">
</body></noframes>
</html>　

【本文版权归作者与奥索网共同拥有，如需转载，请注明作者及出处】　　