Memorable Password Generator

In this tutorial you will learn to create a password generator that creates pronouncable easy to remember passwords. Lets start with the full script.

<?php 
function genPass($lenght) 
{ 
   $vowels = "a,o,u,e,i,y,ea,ou";
   $cons = "q,w,r,t,p,d,f,g,h,j,k,l,c,v,b,n,m,th,ch,cr,br,ch,ph,cl";
   $vowelsArray = explode(",",$vowels);
   $consArray = explode(",",$cons); 
   for ($i = 0; $i < $lenght/2; $i++){
      $password .= $vowelsArray[(mt_rand(0,count($vowelsArray)-1))];
      $password .= $consArray[(mt_rand(0,count($consArray)-1))];
   }
   $password = substr($password,0,$lenght);
   return $password; 
}
?>

First we define the function, it can take a variable to decide the lenght of the password:

function genPass($lenght)
{

Here we create 2 strings, with letters separated by commas. We will use these letters when we create the password:

$vowels = "a,o,u,e,i,y,ea,ou";
$cons = "q,w,r,t,p,d,f,g,h,j,k,l,c,v,b,n,m,th,ch,cr,br,ch,ph,cl";

To easier work with these letters, we split them up and put them into arrays. Resulting in $vowelsArray[0] == a, $vowelsArray[1] == o etc.

$vowelsArray = explode(",",$vowels);
$consArray = explode(",",$cons);

Then we have 2 lines inside a for loop. count($vowelsArray)-1 Will count how many positions we have in that array, and substract with 1. (mt_rand(0,count($vowelsArray)-1)) Will then return a random numer, from 0 to count($vowelsArray)-1. We will end up with e.g $vowelsArray[3];. Using the .= operator we will add both a vowel and a consonant to the string.

for ($i = 0; $i < $lenght/2; $i++){
	$password .= $vowelsArray[(mt_rand(0,count($vowelsArray)-1))];
	$password .= $consArray[(mt_rand(0,count($consArray)-1))];
}

The next line will give us a password with the lenght that we want. Taking out a substring from $password, with start from letter 0 with the lenght of $lenght.

$password = substr($password,0,$lenght);

Then we reurn the password.

return $password;

Here is how we can use the script:

$newpass = genPass(6);
echo "<p>$newpass</p>";

Memorable Password Generator

Leave a comment

Menu