<?
ob_start();
@$type=$_GET['type'];
if (empty($_COOKIE["user"]) or $_COOKIE["admin"]<>1 ){
if(empty($_POST['submit']) ) {?>
登录后台
        <form id="qq_loginform" name="qq_loginform" action="admin.php?type=login" method="post">
       <p>管理账号 </p>
       <input id="qq" type="text" name="name" value="" maxlength="20"/>
       <p> 密码 </p>
       <input id="pwd" type="password" name="password" value="" maxlength="16"/>
	   <br />
       <input id="loginsubmit" class="btn-s" type="submit" name="submit" value="登录"/>
       </form>
Cookies 必须启用才能登入
<? 
} }elseif($type=='' ){?>
<p>后台</p>

        <p><b>基本设置</b></p>
<?  }
if ($type=='login'){//管理员登陆
	$name=$_POST['name'];
	$pass=$_POST['password'];

	echo '登陆成功';
	     setcookie("name", "$name", time()+1800);
		 setcookie("admin", "$pass", time()+1800);
		 echo '<meta http-equiv="refresh" content="3;admin.php">';
		 echo '</br>3秒后自动跳转,如未跳转,请点<a href="admin.php">这里</a>';
}