PHP randomly generates easy-to-remember password example code-PHP Tutorial-php.cn

PHP randomly generates easy-to-remember password example code

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Release： 2023-03-13 14:28:02

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Password is a technique used to obfuscate the user's desire to transform normal (identifiable) information into unrecognizable information. But parts of this unrecognizable information can be reprocessed and recovered and deciphered. Password is the general name for "password" in Chinese. The "password" entered when logging into websites, e-mails, and bank withdrawals should strictly speaking be called "passwords" because it is not an "encryption code" in the original sense, but it can also be called a secret number. It is mainly limited to a system of symbols that an individual understands (such as a message). Such as cipher telegraph and cipher typewriter.

This article mainly introduces the implementation of PHP to randomly generate easy-to-remember passwords. It analyzes the related techniques of PHP to generate random passwords with examples. Friends in need can refer to it.

Here are some predefined words. , let php randomly select and combine from these words to generate the password

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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