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php使用指定字符列表生成随机字符串的方法,php字符

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Release: 2016-06-13 09:06:34
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php使用指定字符列表生成随机字符串的方法,php字符

本文实例讲述了php使用指定字符列表生成随机字符串的方法。分享给大家供大家参考。具体如下:

<&#63;php
function randomString($len) {
  srand(date("s"));
  $possible="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz1234567890!@#$%^&*()";
  $str="";
  while(strlen($str)<$len) {
   $str.=substr($possible,(rand()%(strlen($possible))),1);
  }
  return($str);
}
&#63;>
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希望本文所述对大家的php程序设计有所帮助。

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