<?php
$color_red = rand(1314523242123221,424224243144133311);
echo $color_red;
?>
Please I am trying to develope a website that will demand at random generation of pin codes which will not be repeatable pls somebody help me out. I was given this code by a friend. I need contribution from you guys great programmers

Try com_create_guid() . It will give you a guid which is always a 32 character hexadecimal. Its fixed length and unique.

<?php
$uniqueId = com_create_guid();
echo $uniqueId ;
?>