How to generate random password in php-PHP Tutorial-php.cn

How to generate random password in php

墨辰丷

Release： 2023-03-31 10:24:01

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This article mainly introduces the method of generating random passwords in PHP. Interested friends can refer to it. I hope it will be helpful to everyone.

The example in this article describes how PHP can randomly generate passwords that are easy to remember. The specific implementation method is as follows:

Here, by predefining some words, PHP can randomly select and combine them to generate passwords

function random_readable_pwd($length=10){
  // the wordlist from which the password gets generated 
  // (change them as you like)
  $words = &#39;dog,cat,sheep,sun,sky,red,ball,happy,ice,&#39;;
  $words .= &#39;green,blue,music,movies,radio,green,turbo,&#39;;
  $words .= &#39;mouse,computer,paper,water,fire,storm,chicken,&#39;;
  $words .= &#39;boot,freedom,white,nice,player,small,eyes,&#39;;
  $words .= &#39;path,kid,box,black,flower,ping,pong,smile,&#39;;
  $words .= &#39;coffee,colors,rainbow,plus,king,tv,ring&#39;;
  // Split by ",":
  $words = explode(&#39;,&#39;, $words);
  if (count($words) == 0){ die(&#39;Wordlist is empty!&#39;); }
  // Add words while password is smaller than the given length
  $pwd = &#39;&#39;;
  while (strlen($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...

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Summary: The above is the entire content of this article, I hope it will be helpful to everyone's study.

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