code generater

code.php

<?php
$limit = 30; // 產生組數

$base32 = array_merge(range('A', 'Z'), range(2, 7));
$length = 6;

for($i = 0; $i < $limit; $i++){
    $code = '';
    for($j = 0; $j < $length; $j++){
        $code .= $base32[rand(0, 31)];
    }
    echo "$code\n";
}