<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>登录</title>
</head>
<body>
<form action="{:U('Login/index')}" method="post">
username <input type="text" name="username" />
password <input type="password" name="password" />
remember <input type="checkbox" name="check" value="1" />
<input type="submit" value="Login" />
</form>
</body>
</html>//登录检查
public function index() {
$Key="usezan";
$info = I("post.");
$user = M('user')->where(array("username"=>$info['username']))->find();
if(!$user || $user['password'] != md5($info['password'])){
$this->error("账号或者面错误...");
}
//登录成功
$data['id'] = $user['id']; //用户id
$data['name'] = $user['username']; //用户显示名称
//保存session
session("userinfo",$data);
//如果选中记住我，就将登录信息放入Cookie中
if($info['check']){
//将登录信息，存放在Cookie中
$Value = serialize($User);
$Str = md5($value.$Key);
setcookie('Login', $Str . $Value,time()+60*60*24*30,'/');
}
$this->redirect('Index');
}//检查登录状态
public function Index(){
$Key="usezan";
//如果Session中没有登录信息，尝试从Cookie中加载用户信息
if (!session("?userinfo")) {
$Value = $_COOKIE['Login'];
// 去掉魔术引号
if (get_magic_quotes_gpc()) {
$Value = stripslashes($Value);
}
$Str = substr($Value,0,32);
$Value = substr($Value,32);
//校验
if (md5($Value . $Key) == $Str) {
$User = unserialize($Value);
$_SESSION['userinfo'] = $User;
}
}
