Creating an ordered time UUID alongside a timestamp-first COMB UUID.

uuid.php

<?php

// composer require ramsey/uuid moontoast/math

require_once 'vendor/autoload.php';

use Ramsey\Uuid\Codec\OrderedTimeCodec;
use Ramsey\Uuid\Codec\TimestampFirstCombCodec;
use Ramsey\Uuid\Generator\CombGenerator;
use Ramsey\Uuid\UuidFactory;


/**
 * Creating a v1 UUID with ordered time fields
 */
$orderedTimeFactory = new UuidFactory();
$orderedTimeFactory->setCodec(new OrderedTimeCodec($orderedTimeFactory->getUuidBuilder()));

$orderedTimeUuid = $orderedTimeFactory->uuid1();

echo "v{$orderedTimeUuid->getVersion()}: ";
echo $orderedTimeUuid . "\n";


/**
 * Creating a v4 UUID with timestamp included in first 6 bytes
 */
$timestampFirstCombFactory = new UuidFactory();

$combGenerator = new CombGenerator(
    $timestampFirstCombFactory->getRandomGenerator(),
    $timestampFirstCombFactory->getNumberConverter()
);

$timestampFirstCombCodec = new TimestampFirstCombCodec(
    $timestampFirstCombFactory->getUuidBuilder()
);

$timestampFirstCombFactory->setRandomGenerator($combGenerator);
$timestampFirstCombFactory->setCodec($timestampFirstCombCodec);

$timestampFirstCombUuid = $timestampFirstCombFactory->uuid4();

echo "v{$timestampFirstCombUuid->getVersion()}: ";
echo $timestampFirstCombUuid . "\n";