<?php

/**

*产生随机字符串

*

*产生一个指定长度的随机字符串,并返回给用户

*

*@accesspublic

*@paramint$len产生字符串的位数

*@returnstring

*/

functionrandStr($len=6){

$chars='ABDEFGHJKLMNPQRSTVWXYabdefghijkmnpqrstvwxy23456789#%*';//characterstobuildthepasswordfrom

mt_srand((double)microtime()*1000000*getmypid());//seedtherandomnumbergenerater(mustbedone)

$password='';

while(strlen($password)<$len)

$password.=substr($chars,(mt_rand()%strlen($chars)),1);

return$password;

}

?>