<?php
if( isset($_COOKIE['username']) && isset($_COOKIE['auth'])){
$arr = explode(':',$_COOKIE['auth']);
$id = end($arr);
$link = mysqli_connect('127.0.0.1','root','root','xmz',8889) or die("连接失败");
mysqli_set_charset($link,'utf8');
$sql = "select id,username,password from member where id ={$id} ";
$res = mysqli_query($link,$sql);
if(mysqli_num_rows($res)){
$row = mysqli_fetch_assoc($res);
$authStr = md5($row['username'].$row['password'].'xmz').":".$id;
if($authStr == $_COOKIE['auth']){
exit("<script>
alert('正在登陆中，请稍后');
location.href = 'shouye.php';
</script>");
}
}}
?>
<!doctype html>
<html lang="en">
<head>
<title>Bootstrap 实例</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://cdn.staticfile.org/twitter-bootstrap/3.3.7/css/bootstrap.min.css">
<script src="https://cdn.staticfile.org/jquery/2.1.1/jquery.min.js"></script>
<script src="https://cdn.staticfile.org/twitter-bootstrap/3.3.7/js/bootstrap.min.js"></script>
</head>
<body>
<div class="container">
<div class="row clearfix">
<div class="col-md-12 column">
<h3 class="text-center">
登陆页面
</h3>
<form role="form" method="post" action="doLogin.php">
<div class="form-group">
<label for="exampleInputEmail1">请输入用户名</label><input type="text" class="form-control" id="username" name="username" />
</div>
<div class="form-group">
<label for="exampleInputPassword1">请输入密码</label><input type="password" class="form-control" id="password" name="password"/>
</div>
<div class="checkbox">
<label><input type="checkbox" name="autoLogin" value="1"/>一周内自动登陆</label>
</div> <button type="submit" class="btn btn-default">登陆</button>
</form>
</div>
</div>
</div>
</body>
</html>
<?php
$username = $_POST['username'];
$password = md5($_POST['password']);
$autoLogin = isset($_POST['autoLogin'])?1:0;
$link = mysqli_connect('127.0.0.1','root','root','xmz',8889) or die("数据库连接失败");
mysqli_set_charset($link,'utf8');
$sql = "SELECT id,username, password FROM member WHERE username = '{$username}' and password = '{$password}'";
$res = mysqli_query($link,$sql);
$num = mysqli_num_rows($res);
if($num){
$row = mysqli_fetch_assoc($res);
if($autoLogin == 1){
setcookie('username',$username,strtotime('+7 days'));
$salt = 'xmz';
$auth = md5($username.$password.$salt).":".$row['id'];
setcookie('auth',$auth,strtotime('+7 days'));
exit("<script>
alert('登陆成功');
location.href = 'shouye.php';
</script>");
}else{
setcookie('username',$username);
$salt = 'xmz';
$auth = md5($username.$password.$salt).":".$row['id'];
setcookie('auth',$auth);
exit("<script>
alert('登陆成功');
location.href = 'shouye.php';
</script>");
}
}else{
exit("<script>
alert('密码错误');
location.href = 'login.php';
</script>");
}
<?php
if(!isset($_COOKIE['username']) && (!isset($_COOKIE['auth']))){
exit("<script>
alert('请先登陆');
location.href = 'login.php';
</script>");
}
$arr = explode(':',$_COOKIE['auth']);
$id = end($arr);
$link = mysqli_connect('127.0.0.1','root','root','xmz',8889) or die("连接失败");
mysqli_set_charset($link,'utf8');
$sql = "select id,username,password from member where id ={$id} ";
$res = mysqli_query($link,$sql);
if(mysqli_num_rows($res)){
$row = mysqli_fetch_assoc($res);
$authStr = md5($row['username'].$row['password'].'xmz').":".$id;
if($authStr != $_COOKIE['auth']){
exit("<script>
alert('校验失败');
location.href = 'login.php';
</script>");
}
}else{
exit("<script>
alert('请先登陆');
location.href = 'login.php';
</script>");
}
?>
<!doctype html>
<html lang="en">
<head>
<title>Bootstrap 实例</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://cdn.staticfile.org/twitter-bootstrap/3.3.7/css/bootstrap.min.css">
<script src="https://cdn.staticfile.org/jquery/2.1.1/jquery.min.js"></script>
<script src="https://cdn.staticfile.org/twitter-bootstrap/3.3.7/js/bootstrap.min.js"></script>
</head>
<body><div class="container">
<div class="row clearfix">
<div class="col-md-12 column">
<nav class="navbar navbar-default" role="navigation">
<div class="navbar-header">
<button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1"> <span class="sr-only">Toggle navigation</span><span class="icon-bar"></span><span class="icon-bar"></span><span class="icon-bar"></span></button> <a class="navbar-brand" href="#">Brand</a>
</div>
<div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
<ul class="nav navbar-nav">
<li class="active">
<a href="#">Link2</a>
</li>
<li>
<a href="#">Link</a>
</li>
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown">Dropdown<strong class="caret"></strong></a>
<ul class="dropdown-menu">
<li>
<a href="#">Action</a>
</li>
<li>
<a href="#">Another action</a>
</li>
<li>
<a href="#">Something else here</a>
</li>
<li class="divider">
</li>
<li>
<a href="#">Separated links</a>
</li>
<li class="divider">
</li>
<li>
<a href="#">One more separated link</a>
</li>
</ul>
</li>
</ul>
<form class="navbar-form navbar-left" role="search">
<div class="form-group">
<input type="text" class="form-control" />
</div> <button type="submit" class="btn btn-default">Submit</button>
</form>
<ul class="nav navbar-nav navbar-right">
<li>
<a href=""> 欢迎您 <?php echo $_COOKIE['username']; ?></a>
</li>
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown">Dropdown<strong class="caret"></strong></a>
<ul class="dropdown-menu">
<li>
<a href="#">Action</a>
</li>
<li>
<a href="#">Another action</a>
</li>
<li>
<a href="#">Something else here</a>
</li>
<li class="divider">
</li>
<li>
欢迎您
</li>
</ul>
</li>
</ul>
</div>
</nav>
</div>
</div>
</div></body>
</html>
