Generate Random Password In PHP

[Aaquib]

Hi,

I am developing a new project in PHP.
For that i want to generate the random password for each users. but i don't know how to do this.

please help.

[kelfro]

If you want to generate the random password using the string you can use the rand function

It’s easy to use to use the rand(min, max) function to generate a random number between min and max (inclusive).

Here is a clever way of using rand() and chr() function to generate a random string:

chr(rand(65,90)) will generate a random character between A - Z (capital)

chr(rand(97,122)) will generate a random character between a - z (lower case)

Therefore, if you want to generate a 5 character long string of random string (assuming all lower case), you would write:

$RandomString=chr(rand(97,122)).chr(rand(97,122)).chr(rand(97,122)).chr(rand(97,122)).chr(rand(97,12 2));

Or you can write a simple for() loop and concatenate them together.

Hope that helps.

[Zecho]

To Generates a random string of variable length you can use this given function.

      function getUniqueCode($length = "")
      {
         $code = md5(uniqid(rand(), true));
         if ($length != "") return substr($code, 0, $length);
        else return $code;
      }