purifier用来过滤危险的标签xss

htmlpurifier下载地址：   http://htmlpurifier.org/ 

purifier下载地址：   https://github.com/mewebstudio/Purifier    laravel

<?php
/**
 * 富文本编辑器
 * purifier  用来过滤危险的标签
 * VERSION:  '4.11.0'
 * url:  http://htmlpurifier.org/
 */
require_once './htmlpurifier/library/HTMLPurifier.auto.php';
require_once './htmlpurifier/library/HTMLPurifier.func.php';

/**
 * 要过滤的xss
 */
$dirty_html = "123456789<a href='http://www.baidu.com'>asdfgh</a><script>'abc' ; alter('abc');</script>";

$config = HTMLPurifier_Config::createDefault();
$purifier = new HTMLPurifier($config);
$clean_html = $purifier->purify($dirty_html);
// var_dump($clean_html);exit; // 123456789asdfgh
/**
 * fidder抓包
 * Raw
 * content=123456789%3cscript%3ealter(%27abc%27)%3b%3c%2fscript%3e
 */
$html = HTMLPurifier($dirty_html);
echo $html;

/**
 * 封装purifier xss 函数
 * dirname(__FILE__)
 * purifier  用来过滤危险的标签
 */
function clean($html)
{
    require_once './htmlpurifier/library/HTMLPurifier.auto.php';
    require_once './htmlpurifier/library/HTMLPurifier.func.php';

    $dirty_html = $html ? $html : "123456789<script>alter('abc');</script>";
    return HTMLPurifier($dirty_html);
}