PHP生成随机字符串代码

PHP生成随机字符串代码

　　PHP生成随机字符串的函数，下面是我在网上找到的2个关于PHP随机字符串的函数，希望大家喜欢。
　　
　　<?php
　　functiongenRandomString(len)
　　{
　　chars=array(
　　"a","b","c","d","e","f","g","h","i","j","k",
　　"l","m","n","o","p","q","r","s","t","u","v",
　　"w","x","y","z","A","B","C","D","E","F","G",
　　"H","I","J","K","L","M","N","O","P","Q","R",
　　"S","T","U","V","W","X","Y","Z","0","1","2",
　　"3","4","5","6","7","8","9"
　　);
　　charsLen=count(chars)-1;
　　
　　shuffle(chars);//将数组打乱
　　
　　output="";
　　for(i=0;i<len;i++)
　　{
　　output.=chars[mt_rand(0,charsLen)];
　　}
　　
　　returnoutput;
　　
　　}
　　
　　str=genRandomString(25);
　　str.="<br/>";
　　str.=genRandomString(25);
　　str.="<br/>";
　　str.=genRandomString(25);
　　
　　echostr;
　　
　　?>
　　
　　<?php
　　/*GeneratePassword
　　*Length:8
　　*/
　　str="0123456789abcdefghijklmnopqrstuvwxyz";//输出字符集
　　n=8;//输出串长度
　　len=strlen(str)-1;
　　for(j=0;j<200;j++){
　　for(i=0;i<n;i++){
　　s.=str[rand(0,len)];
　　}
　　echos."<br/>";
　　s="";
　　}
　　
　　?>