采用行寫方式的聊天程序（之二）

2024-05-04 23:01:54

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lt1.php:
該程序為整個系統的入口，含有兩個全局參數：chat_hh,uname分別記錄當前最大的發言序號和發言者名稱

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

//取數據庫最大編號
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;

//增加在線人員信息
$query  = "select count(*) as rcount from lt_t_online where lt_username = '".$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無刷新感聊天室</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>

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