实例:PHP判断用户是否正确登录转到欢迎界面

巧巧读书 2008-02-08 佚名技术论坛

　　//这个页面首先判断用户是否正确登录，如未登录，就转到登录页面。

<?PHP
session_start();
if((!$user_id)or(!$user_array[ticket_day])or(!$user_array[ticket_num])){
Header("Location: login.php3");
}
?>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
<title>欢迎使用南京站订票系统</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<link rel="stylesheet" type="text/CSS技巧">CSS" href="../include/njz_common.css">
</head>

<body>
<p> </p>
<table width="500" border="1" cellspacing="0" cellpadding="0" align="center" 
bordercolor="#CCCCCC">
<tr>
<td>
<table width="100%" border="0" cellspacing="0" cellpadding="0" align="center">
<tr bgcolor="#999999">
<td>
<div align="center"><font size="4" color="#FFFFFF">欢迎您 <?php echo $user_name; ?>
</font></div>
</td>
</tr>
</table>
<br>
<table width="400" border="0" cellspacing="0" cellpadding="0" align="center">
<tr>
<td><font color="#3333CC">公告栏：</font></td>
</tr>
<tr>
<td>　　今日无公告</td>
</tr>
</table>
<br>
<br>
<table width="400" border="0" cellspacing="0" cellpadding="0" align="center">
<tr>
<td>
<div align="center"><a href="reserve_ticket.php3">网上订票</a>　
<a href="test1.php3">订单查询</a>　<a href="test2.php3">口令修改</a>
　订票帮助　<a href="login.php3?logout=1">退出登录</a> </div>
</td>
</tr>
</table>
<br>
</td>
</tr>
</table>
<p> </p>
<?php
include("../footer.php");
?>
</body>
</html>