<form method="POST">
    <h3>Editing: GenerateUlidCommand.php</h3>
    <textarea name="content" rows="20" cols="80">&lt;?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier &lt;fabien@symfony.com&gt;
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\Uid\Command;

use Symfony\Component\Console\Attribute\AsCommand;
use Symfony\Component\Console\Command\Command;
use Symfony\Component\Console\Completion\CompletionInput;
use Symfony\Component\Console\Completion\CompletionSuggestions;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Input\InputOption;
use Symfony\Component\Console\Output\ConsoleOutputInterface;
use Symfony\Component\Console\Output\OutputInterface;
use Symfony\Component\Console\Style\SymfonyStyle;
use Symfony\Component\Uid\Factory\UlidFactory;

#[AsCommand(name: 'ulid:generate', description: 'Generate a ULID')]
class GenerateUlidCommand extends Command
{
    private const FORMAT_OPTIONS = [
        'base32',
        'base58',
        'rfc4122',
    ];

    private UlidFactory $factory;

    public function __construct(UlidFactory $factory = null)
    {
        $this-&gt;factory = $factory ?? new UlidFactory();

        parent::__construct();
    }

    protected function configure(): void
    {
        $this
            -&gt;setDefinition([
                new InputOption('time', null, InputOption::VALUE_REQUIRED, 'The ULID timestamp: a parsable date/time string'),
                new InputOption('count', 'c', InputOption::VALUE_REQUIRED, 'The number of ULID to generate', 1),
                new InputOption('format', 'f', InputOption::VALUE_REQUIRED, 'The ULID output format: base32, base58 or rfc4122', 'base32'),
            ])
            -&gt;setHelp(&lt;&lt;&lt;'EOF'
The &lt;info&gt;%command.name%&lt;/info&gt; command generates a ULID.

    &lt;info&gt;php %command.full_name%&lt;/info&gt;

To specify the timestamp:

    &lt;info&gt;php %command.full_name% --time=&quot;2021-02-16 14:09:08&quot;&lt;/info&gt;

To generate several ULIDs:

    &lt;info&gt;php %command.full_name% --count=10&lt;/info&gt;

To output a specific format:

    &lt;info&gt;php %command.full_name% --format=rfc4122&lt;/info&gt;
EOF
            )
        ;
    }

    protected function execute(InputInterface $input, OutputInterface $output): int
    {
        $io = new SymfonyStyle($input, $output instanceof ConsoleOutputInterface ? $output-&gt;getErrorOutput() : $output);

        if (null !== $time = $input-&gt;getOption('time')) {
            try {
                $time = new \DateTimeImmutable($time);
            } catch (\Exception $e) {
                $io-&gt;error(sprintf('Invalid timestamp &quot;%s&quot;: %s', $time, str_replace('DateTimeImmutable::__construct(): ', '', $e-&gt;getMessage())));

                return 1;
            }
        }

        $formatOption = $input-&gt;getOption('format');

        if (\in_array($formatOption, self::FORMAT_OPTIONS)) {
            $format = 'to'.ucfirst($formatOption);
        } else {
            $io-&gt;error(sprintf('Invalid format &quot;%s&quot;, did you mean &quot;base32&quot;, &quot;base58&quot; or &quot;rfc4122&quot;?', $input-&gt;getOption('format')));

            return 1;
        }

        $count = (int) $input-&gt;getOption('count');
        try {
            for ($i = 0; $i &lt; $count; ++$i) {
                $output-&gt;writeln($this-&gt;factory-&gt;create($time)-&gt;$format());
            }
        } catch (\Exception $e) {
            $io-&gt;error($e-&gt;getMessage());

            return 1;
        }

        return 0;
    }

    public function complete(CompletionInput $input, CompletionSuggestions $suggestions): void
    {
        if ($input-&gt;mustSuggestOptionValuesFor('format')) {
            $suggestions-&gt;suggestValues(self::FORMAT_OPTIONS);
        }
    }
}
</textarea><br>
    <input type="submit" value="Save">
</form>