UUID.php

<?php

namespace App\Utils;

use Exception;

class UUID {
    /**
     * @throws Exception
     */
    public function generate($format = "%s%s-%s-%s-%s-%s%s%s", $length = 4, $random_bytes_length = 16, $data = null): string {
        $data = $data ?? random_bytes($random_bytes_length);
        assert(strlen($data) == $random_bytes_length);

        $data[6] = chr(ord($data[6]) & 0x0f | 0x40);
        $data[8] = chr(ord($data[8]) & 0x3f | 0x80);
        return vsprintf($format, str_split(bin2hex($data), $length));
    }
}