Question

I am having requirement to give my users a function to generate a safe password…

I have the algo in my mind but don’t know how to process with it..

1. I will have a set of characters to provide in the password
2. I will have control over size of password that means select length
3. Select random indices from the array to get passsword of my selcected length…

Last part is what I can’t implement..

Any help will be appreciated…

function randompassword() {  // Declaring the function
//Config Start
$salt = "abchefghjkmnpqrstuvwxyz0123456789"; // Your characters bank
$n = "8";                                   // Number of character to return
//end config

//Logic for password generation..

return $pass;
}

Answer 1

$v = strlen($salt); 
$pass='';
srand((double)microtime()*1000000);
  $i = 1;
  while ($i <= $n) {
        $num = rand() % $v;
        $tmp = substr($salt, $num, 1);
        $pass = $pass . $tmp;
        $i++;
  }

You can try this code..