Home  >  Article  >  Backend Development  >  PHP generate random string function

PHP generate random string function

怪我咯
怪我咯Original
2017-07-09 09:24:021362browse

<?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   
*   
* @access public   
* @param int $len 产生字符串的位数   
* @return string   
*/   
function randStr($len=6) {   
$chars=&#39;ABDEFGHJKLMNPQRSTVWXYabdefghijkmnpqrstvwxy23456789#%*&#39;; // characters to build the password from   
mt_srand((double)microtime()*1000000*getmypid()); // seed the random number generater (must be done)   
$password=&#39;&#39;;   
while(strlen($password)<$len)   
$password.=substr($chars,(mt_rand()%strlen($chars)),1);   
return $password;   
}  

?>

The above is the detailed content of PHP generate random string function. For more information, please follow other related articles on the PHP Chinese website!

Statement:
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