聊天室php&mysql(二)

　2001-03-27 16:34:35　来源：WEB开发网　　　

核心提示：//第二页面 name="frame2.php" <? include "../signup/MySQL.php"; header("Expires: Sun, 28 Dec 1997 09:32:45 GMT"); header("Cache

//第二页面 name="frame2.php"

<?
include "../signup/MySQL.php";
header("Expires: Sun, 28 Dec 1997 09:32:45 GMT");
header("Cache-Control: no-cache, must-revalidate");
header("PRagma: no-cache");
header("Content-Type: text/html; charset=${Charset}");

$current_time=time();
$delete_time=$current_time-40;
$sql="delete from chat_user where last_time<".$delete_time;
mysql_query($sql)or die(" false again");

$sql="update chat_user set last_time='$current_time' where userid='$userid'";
mysql_query($sql) or die("false");

$sql="select userid from chat_user";
$result=mysql_query($sql)or die("fallse");
$online=mysql_num_rows($result);
?>

<html>
<head>
<title>user list</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<meta http-equiv="Refresh" content="30; url=<? echo $PHP_SELF; ?>?userid=<?echo $userid?>">

</head>

<body bgcolor="#6699FF" text="#000000">
<div id="Layer1" style="position:absolute; left:9px; top:37px; width:94px; height:21px; z-index:1">　
　<div align="center"><font color="#FF9999"><b>在线人数</b></font></div>
</div>
<div id="Layer2" style="position:absolute; left:14px; top:96px; width:105px; height:276px; z-index:2">　
　<p><i><font size="2" color="#FF9999">
　
　
　<?　　　　　　
　$sql="select userid,id,sex from chat_user";
　$result=mysql_query($sql)or die("fallse");
　while($row=mysql_fetch_array($result)){

　　　$user=$row['userid'];
　　　$user="<a href='".$PHP_SELF."?userid=".$userid."' onCLick=parent.bottom.user('".$row["id"]."')>".$row["id"];
　　　echo $user."</a>(".$row["sex"].")<br>";
　}
　?>
　　
　　</font></i></p>
　<p> </p>
</div>
<div id="Layer3" style="position:absolute; left:20px; top:62px; width:74px; height:11px; z-index:3">　
　<div align="center"><font size="2" color="#FF9999">(<?echo $online ;?>人)</font></div>
</div>
<p> </p>
<p> </p>
</body>
</html>