feiqiangs的专栏

des.js////THIS SOFTWARE IS PROVIDED "AS IS" AND//ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE//IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOS

php+正则表达式实现的防注入算法<?phpfunction clean($str){ $str=trim($str); $str=strip_tags($str); $str=stripslashes($str); $str=addslashes($str); $str=rawurldecode($str); $str=quotemeta($str); $str=htm

js代码 var xmlHttp; function createXMLHttpRequest() { if (window.ActiveXObject) { xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");

md5加密之秘文分割法<?php//把密文分割成两段，每段16个字符function md5_2_1($data){//先把密码加密成长度为32字符的密文$data = md5($data);//把密码分割成两段$left = substr($data, 0, 16);$right = substr($data, 16, 16);//分别加密后再合并$data = md

注册的时候，把用户的密码用md5(md5($password).$salt)加密，$salt是一个6位随机数字，下面是我的一个获取6位随机数的一个方法： <?phpfunction randstr($len=6) { $chars='abcdefghijklmnopqrstuvwxyz0123456789'; // characters to build the passw

循环md5<?php02//迭代算法03function md5_1_1($data, $times = 32)04{05//循环使用MD506for ($i = 0; $i < $times; $i++) {07$data = md5($data);08}09return $data;10}11 12//递归算法13function md5