URL加解密例子.

时间：2007-02-18 来源：PHP爱好者

CODE:

[复制到剪切板]

<html xmlns="http://www.w3.org/1999/xhtml" lang="zh-CN"><head><meta http-equiv="content-type" content="text/html; charset=gb2312" /><meta http-equiv="content-language" content="zh-CN" /><meta http-equiv="pragma" content="no-cache" /><meta http-equiv="expires" content="0" /><meta http-equiv="MSThemeCompatible" content="Yes" /><meta http-equiv="imagetoolbar" content="no" />
<meta http-equiv="widow-target" content="_top" /><meta name="robots" content="index, follow" /><meta name="author" content="3945, [email][email protected][/email]" />
<meta name="keywords" content="" /><meta name="description" content="" /><meta name="copyright" content="Copyright 3945 All Rights Reserved" />
<title>无标题文档</title>
<style type="text/css"></style>
</head>

<body>
<?php
function query_encode($sQuery)
{//加密链接
    if(strlen($sQuery)==0)
    {
        return '';
    }
    else
    {
        $s_tem = preg_replace("/&/i", '&', $sQuery);
        $s_tem = preg_replace("/&/i", '&', $s_tem);
        $a_tem = explode('&', $s_tem);
        shuffle($a_tem);
        $s_tem = implode('&', $a_tem);
        $s_tem = rawurlencode($s_tem);
        $s_tem = base64_encode($s_tem);
        $s_tem = strrev($s_tem);
        return $s_tem;
    }
}

function query_decode($sEncode)
{//解密链接
    if(strlen($sEncode)==0)
    {
        return '';
    }
    else
    {
        $s_tem = strrev($sEncode);
        $s_tem = base64_decode($s_tem);
        $s_tem = rawurldecode($s_tem);
        return $s_tem;
    }
}

function rebuild_GET()
{//重写$_GET全局变量
    $_GET = array();
    $s_query = $_SERVER['QUERY_STRING'];
    if(strlen($s_query)==0)
    {
        return;
    }
    else
    {
        $s_tem = query_decode($s_query);
        $a_tem = explode('&', $s_tem);
        foreach($a_tem as $val)
        {
            $tem = explode('=', $val);
            $_GET[$tem[0]] = $tem[1];
        }
    }
}

rebuild_GET();
echo 'GET:<pre>'.print_r($_GET, true).'</pre>';

function testGET()
{
    echo 'Function GET:<pre>'.print_r($_GET, true).'</pre>';
}
testGET();
?>
<br /><br /><br />
<?
for($i=1; $i<10; $i++)
{
    $s_url = query_encode('ac=index:logo&class=45&id='.$i);
    echo sprintf('<a href="?%s">TEST: %s</a><br />', $s_url, $s_url);
}
?>

</body>
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