<?php
$chars = array(0,1,2,3,4,5,6,7,8,9,'A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z');
$serial = '';
$max = count($chars)-1;
for($j=0;$j<500;$j++){
for($i=0;$i<12;$i++){
$serial .= (!($i % 3) && $i ? '-' : '').$chars[rand(0, $max)];
}
echo $serial.PHP_EOL;
$serial = '';
}
preferences:
31.64 ms | 402 KiB | 5 Q