php实现随机生成易于记忆的密码

本文实例讲述了php实现随机生成易于记忆的密码。分享给大家供大家参考。具体实现方法如

本文实例讲述了php实现随机生成易于记忆的密码。分享给大家供大家参考。具体实现方法如下：

这里通过预定义一些单词，让php随机从这些单词中选择进行组合生成密码

function random_readable_pwd($length=10){
 // the wordlist from which the password gets generated 
 // (change them as you like)
 $words = 'dog,cat,sheep,sun,sky,red,ball,happy,ice,';
 $words .= 'green,blue,music,movies,radio,green,turbo,';
 $words .= 'mouse,computer,paper,water,fire,storm,chicken,';
 $words .= 'boot,freedom,white,nice,player,small,eyes,';
 $words .= 'path,kid,box,black,flower,ping,pong,smile,';
 $words .= 'coffee,colors,rainbow,plus,king,tv,ring';
 // Split by ",":
 $words = explode(',', $words);
 if (count($words) == 0){ die('Wordlist is empty!'); }
 // Add words while password is smaller than the given length
 $pwd = '';
 while (strlen($pwd) < $length){
 $r = mt_rand(0, count($words)-1);
 $pwd .= $words[$r];
 }
 // append a number at the end if length > 2 and
 // reduce the password size to $length
 $num = mt_rand(1, 99);
 if ($length > 2){
 $pwd = substr($pwd,0,$length-strlen($num)).$num;
 } else { 
 $pwd = substr($pwd, 0, $length);
 }
 return $pwd;
}
//使用范例：
random_readable_pwd(10) => returns something like: pingwater6, radiohap28, sunwhite84, happykid44, etc...

希望本文所述对大家的php程序设计有所帮助。