index.php文件代码
<?php
include("check.php");
?>
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>后台首页</title>
</head>
<body>
<?php echo "欢迎您：".$_SESSION['username'];?><a href="loginout.php">注销</a>
</body>
</html>login.php文件代码
<?php
include("conn.php");
if($_POST['username']&&$_POST['psd']){
$sql="select * from user where username='".$_POST['username']."' and psd='".$_POST['psd']."'";
$result=mysqli_query($conn,$sql);
$row=mysqli_fetch_array($result);
if($row['username']){
$_SESSION['username']=$row['username'];
header("location:index.php");
}else{
echo "登录失败";
}
}else{
?>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<link rel="stylesheet" type="text/css" href="http://www.niuguwen.com/plugin/niuguwen/css/niuguwen.css">
<title>用户登录</title>
</head>
<body>
<div class="ngwlogin">
<div class="formtitle">
<a href="/">人才管理系统</a>
</div>
<div class="ngwform formbody">
<form class="form" action="login.php" method="post">
<div>
<label>用户名</label>
<input type="text" name="username" placeholder="请输入用户名(学号或手机号)" required="required" class="input" value="" />
</div>
<div>
<label>密码</label>
<input type="password" name="psd" placeholder="请输入密码" required="required" class="input" value="" />
</div>
<ul>
<li class="fl"><button type="submit">登录</button></li>
<li class="fr">
<a href="register.php">注册</a>
</li>
</ul>
</form>
</div>
<div class="formfoot"></div>
</div>
</body>
</html>
<?php
}?>conn.php文件代码
<?php
session_start();
$conn=@mysqli_connect("localhost","root","root","rencai") or die("无法连接数据库");
?>check.php文件代码
<?php
include("conn.php");
if($_SESSION['username']){
}else{
header("location:login.php");
}
?>loginout.php文件代码
<?php
session_destroy();
header("location:login.php")
?>- 文章导航