简体中文(ZH-CN) English(EN) 繁体中文(ZH-TW) 日本語(JA) 한국어(KO) Melayu(MS) Français(FR) Deutsch(DE)
Home > Backend Development > PHP Tutorial > body text

Simple PHP anti-injection content filtering method_PHP tutorial

WBOY
Release： 2016-07-13 10:48:02
Original
1094 people have browsed it

Content filtering is mainly to prevent some security injections or cross-domain operations. Let’s take a look at some simple anti-injection content filtering program codes that I compiled. I hope the article will be helpful to all students.

Method 1, filter some useless content

The filtering of useless information is strict, and useful information may not be entered. You can find other filtering methods on the Internet:

The code is as follows
 代码如下 复制代码

function checkHtml($data){
  $ret  = preg_match("/['.,:;*?~`!@#$%^&+=)(<>{}]|]|[|/||"||/",$data);
  if ($ret == 1) {
    return false; exit;
  } else {
    return true;
  }
}
Copy code
 代码如下 复制代码


function uh($str)
{
$farr = array(
"/s+/", //过滤多余的空白
"/<(/?)(scripti?framestylehtmlbodytitlelinkmeta?%)([^>]*?)>/isU", //过滤

Popular Tutorials
More>
Related Tutorials
Popular Recommendations
Latest courses
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template
About us Disclaimer Sitemap
php.cn：Public welfare online PHP training，Help PHP learners grow quickly！