我的网页由一个菜单栏组成，其中有五个菜单
HOME、DATA、FEEDBACK、ABOUT &登录。
- 我的目标是从登录菜单登录(一个jquery模态弹出登录)，登录后，我希望菜单栏为
、数据, 反馈, 对和注销。 - 在下面的代码中，我使用了if-else condition ，它显示在if条件下登录和在else条件下注销。
- 但是代码无法识别我已经登录并且总是只显示登录。我怎么解决这个问题
提前感谢
<?php include'connect.php';?
<html>
<head>
<script src="jquery/jquery.min.js" type="text/javascript" charset="utf-8"></script>
<script src="jquery/jquery.modal.min.js" type="text/javascript" charset="utf-8"></script>
<link rel="stylesheet" href="style/jquery.modal.css" type="text/css" media="screen" />
<style type="text/css" media="screen">
html { background: transparent; }body { font: normal 18px/1.6 'Open Sans', "Helvetica Neue", Arial, sans-serif; font-weight: 300; color: #777; padding: 2em 5%; margin: 0 auto; background: #fff; } small { color: #aaa; }h1,h2,h3,h4 { color: #444; font-weight: 700; font-size: 1.6em; letter-spacing: -1px; } a { color: #0086B3; font-weight: 700; } a:hover { color: #000; } p code, li code {background:#ffffcc; color: #444; } pre { font-size: 12px; line-height: 18px; } pre code { overflow: scroll; padding: 1em; border-radius: 10px; } hr { height: 10px; background: #eee; border: none; } table {width:100%;border-collapse:collapse;} td { border: 1px solid #eee; padding: 15px; } td pre { margin: 0; } /* Example 2 (login form) */ .login_form.modal {border-radius: 0; line-height: 18px; padding: 0; font-family: "Lucida Grande", Verdana, sans-serif;}
.login_form h3 {margin: 0;padding: 10px;color: #fff;font-size: 14px;background: -moz-linear-gradient(top, #2e5764, #1e3d47);background: -webkit-gradient(linear,left bottom,left top,color-stop(0, #1e3d47),color-stop(1, #2e5764));}
.login_form.modal p { padding: 20px 30px; border-bottom: 1px solid #ddd; margin: 0; background: -webkit-gradient(linear,left bottom,left top,color-stop(0, #eee),color-stop(1, #fff)); overflow: hidden;}
.login_form.modal p:last-child { border: none; }
.login_form.modal p label { float: left; font-weight: bold; color: #333; font-size: 13px; width: 110px; line-height: 22px; }
.login_form.modal p input[type="text"],
.login_form.modal p input[type="password"] {font: normal 12px/18px "Lucida Grande", Verdana;padding: 3px;border: 1px solid #ddd;width: 200px;}
.part {display: none;}
</head>
<form action='submit' action='<?php $_SERVER['PHP_SELF'] ?>' id='login-form' class='modal'></form>
<form method='post' class='login_form modal' id='ex2' style='display:none;'>
<h3>Please login to continue</h3>
<p><label>Username:</label><input type='text' name='username' /></p>
<p><label>Password:</label><input type='password' name='password' /></p>
<p><input type='submit' value='Login' class='btn btn-large btn-primary' /></p>
</form>
<div id='menu_wrapper'>
`
<div id='logo'>
<img src="images/mdv.jpg" tab="MEDICAL DATA VISUALIZATION" height="96" width="67">
</div>
<div id='title'>
<h style="font-size:30px;background-color:transparent;"><a style='color:white;background:transparent;' href='#'> MEDICAL DATA VISUALIZATION</h>
<br>
<h style="font-size:25px;background-color:transparent; color:none;">ONLINE MEDICAL DATA PROJECTION </a></h><br>
</div>
<?php
if(!isset($_SESSION['id']))
{?>
<div id='menu_wrapper'>
<div id='menu'>
<ul>
<li><a href='main.php'>Home</a></li>
<li><a href='data.php'>Data</a></li>
<li><a href='feedback.php'>Feedback</a></li>
<li><a href='about.php'>About</a></li>
<li><a href='#ex2' rel='modal:open'>LOGIN</a></li>
</ul>
</div>
</div>
</div>
//include'reg.php';
<?php
}
else
{
?>
<div id='menu_wrapper'>
<div id='menu'>
<ul><li><a href='songview.php'>Songs</a></li>
<li><a href='feedback.php'>Feedback</a></li>
<li><a href='about.php'>About</a></li>";
?><li> <a href='logout.php'>logout <?php echo $_SESSION['user'];?></a></li>
</ul>
</div>
</div>
</div>
}
?>
<?php
if(!isset($_SESSION['id']))
{
if(isset($_POST['username'])&&isset($_POST['password']))
{echo 'green';
//including config.php in our file
$username = $_POST['username']; //Storing username in $username variable.
$password = $_POST['password']; //Storing password in $password variable.
echo 'test';
$query_run=mysql_query("SELECT * FROM user WHERE username='$username' && password='$password'");
$count=mysql_num_rows($query_run);
echo $count;
if ($count == 0)
{
header("location:main.php");
}
else
{
$row = mysql_fetch_assoc($query_run);
if(!empty($row))
{
$_SESSION['user'] = $row['username'];
$_SESSION['id'] = $row['id'];
header("location:admin_panel.php");
}
?>
<?php
}
}
}
else
{
echo"death test";
}
?>
<form action='submit' action='<?php $_SERVER['PHP_SELF'] ?>' id='login-form' class='modal'></form>
<form method='post' class='login_form modal' id='ex2' style='display:none;'>
<h3>Please login to continue</h3>
<p><label>Username:</label><input type='text' name='username' /></p>
<p><label>Password:</label><input type='password' name='password' /></p>
<p><input type='submit' value='Login' class='btn btn-large btn-primary' /></p>
</form>
"
试一试:
if(!isset($_SESSION['id'])) {
?>
<div id='menu_wrapper'>
<div id='menu'>
<ul>
<li><a href='main.php'>Home</a></li>
<li><a href='data.php'>Data</a></li>
<li><a href='feedback.php'>Feedback</a></li>
<li><a href='about.php'>About</a></li>
<li><a href='#ex2' rel='modal:open'>LOGIN</a></li>
</ul>
</div>
</div>
</div>
//include'reg.php';
<?php
}
else
{
?>
<div id='menu_wrapper'>
<div id='menu'>
<ul><li><a href='songview.php'>Songs</a></li>
<li><a href='feedback.php'>Feedback</a></li>
<li><a href='about.php'>About</a></li>
<li> <a href='logout.php'>logout <?php echo $_SESSION['user'];?></a></li>
</ul>
</div>
</div>
</div>
<?php
}
?>