php 随机生成10位字符代码

复制代码 代码如下:

  function randStr($len)

  {

  $chars='ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnopqrstuvwxyz'; // characters to build the password from

  $string='';

  for(;$len>=1;$len--)

  {

  $position=rand()%strlen($chars);

  $string.=substr($chars,$position,1);

  }

  return $string;

  }

  echo randStr(10)."<br>";