Home > Backend Development > PHP Tutorial > php中过滤html代码的函数 提高程序安全性_PHP

php中过滤html代码的函数 提高程序安全性_PHP

WBOY
Release: 2016-06-01 12:20:43
Original
888 people have browsed it

用PHP过滤html里可能被利用来引入外部危险内容的代码。有些时候,需要让用户提交html内容,以便丰富用户发布的信息,当然,有些可能造成显示页面布局混乱的代码也在过滤范围内。

以下为过滤HTML代码的函数:

 

function ihtmlspecialchars($string) {
if(is_array($string)) {
foreach($string as $key => $val) {
$string[$key] = ihtmlspecialchars($val);
}
} else {
$string = preg_replace('/&((#(\d{3,5}|x[a-fA-F0-9]{4})|[a-zA-Z][a-z0-9]{2,5});)/', '&\\1',
str_replace(array('&', '"', ''), array('&', '"', '<', '>'), $string));
}
return $string;
}

 

source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template