hiing/header.php

## header.php
<?php
if (!isset($_SESSION)) {
session_start();
}

if( isset($_SESSION['authenticated']) )
{
if($_SESSION['authenticated'] == 'yes')
{
$authenticated = 'yes';
}
else
{
$authenticated = 'no';
}
}
else
{
$authenticated = 'no';
}

if($authenticated != 'yes')
{
header("Location: http://ad.hiing.net/login.php");  //网址改为自己的网址
exit();
}
?>

## login.php
<?php
session_start();

// 将 west4life 改成你要设置的密码
$password = 'west4life';
// 将 ad.hiing.net 改成你网站首页地址，保留后面的斜杠
$url = 'http://ad.hiing.net/';

if(isset($_POST['password'])) {
	$pwd = $_POST['password'];

	if($pwd == $password) {
		$_SESSION['authenticated'] = "yes";
		$do = "redirect";
	}
	else {
		$do = "incorrect";
	}
}
else{
	$do = "showform";
}

if($do == "showform") {
	echo '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
// 这里自定义login.php页面的标题
<title> 落落要淡定 </title>
<style type="text/css">
body {
	font-size:14px;
}
</style>
</head>

<body>
<div align="center" style="margin:100px auto;width:300px;background-color:#000;color:#FFF">		<h2>必须输入密码才能访问本博客</h2>
  <form action="'.$url.'login.php" method="post">
    密码: <input name="password" type="password" /><br></br>
		<button type="submit">登录</button>&nbsp;&nbsp;
		<button type="reset">重置</button></form></div>
	</form>
</div>
</body>
</html>';
}

else if($do == "incorrect") {
	echo '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>输入密码访问</title>
<style type="text/css">
body {
	font-size:14px;
}
</style>
</head>

<body>
<div align="center" style="margin:100px auto;width:300px;background-color:#000;color:#FFF">		<h2>必须输入密码才能访问本博客</h2>
  <form action="'.$url.'login.php" method="post">
  	<div style="color:red" >刚开输入的密码不正确</div>
    密码: <input name="password" type="password" /><br></br>
		<button type="submit">登录</button>&nbsp;&nbsp;
		<button type="reset">重置</button>
	</form>
</div>
</body>
</html>';

}
elseif($do == "redirect")
{
	header("Location: ".$url);
}
?>

## 说明
自己制作login.php，并修改，后，上传到网站根目录
将header.php中的内容添加到theme中的header.php中，第一行即可。自行修改内容。
	<?php
	session_start();

	// 将 west4life 改成你要设置的密码
	$password = 'west4life';
	// 将 ad.hiing.net 改成你网站首页地址，保留后面的斜杠
	$url = 'http://ad.hiing.net/';

	if(isset($_POST['password'])) {
	$pwd = $_POST['password'];

	if($pwd == $password) {
	$_SESSION['authenticated'] = "yes";
	$do = "redirect";
	}
	else {
	$do = "incorrect";
	}
	}
	else{
	$do = "showform";
	}

	if($do == "showform") {
	echo '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
	<html xmlns="http://www.w3.org/1999/xhtml">
	<head>
	<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
	// 这里自定义login.php页面的标题
	<title> 落落要淡定 </title>
	<style type="text/css">
	body {
	font-size:14px;
	}
	</style>
	</head>

	<body>
	<div align="center" style="margin:100px auto;width:300px;background-color:#000;color:#FFF"> <h2>必须输入密码才能访问本博客</h2>
	<form action="'.$url.'login.php" method="post">
	密码: <input name="password" type="password" /><br></br>
	<button type="submit">登录</button>
	<button type="reset">重置</button></form></div>
	</form>
	</div>
	</body>
	</html>';
	}

	else if($do == "incorrect") {
	echo '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
	<html xmlns="http://www.w3.org/1999/xhtml">
	<head>
	<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
	<title>输入密码访问</title>
	<style type="text/css">
	body {
	font-size:14px;
	}
	</style>
	</head>

	<body>
	<div align="center" style="margin:100px auto;width:300px;background-color:#000;color:#FFF"> <h2>必须输入密码才能访问本博客</h2>
	<form action="'.$url.'login.php" method="post">
	<div style="color:red" >刚开输入的密码不正确</div>
	密码: <input name="password" type="password" /><br></br>
	<button type="submit">登录</button>
	<button type="reset">重置</button>
	</form>
	</div>
	</body>
	</html>';

	}
	elseif($do == "redirect")
	{
	header("Location: ".$url);
	}
	?>
	自己制作login.php，并修改，后，上传到网站根目录
	将header.php中的内容添加到theme中的header.php中，第一行即可。自行修改内容。