vendor/ramsey/uuid/src/Uuid.php

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<?php
/**
 * This file is part of the Rhumsaa\Uuid library
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 *
 * @copyright Copyright (c) 2013-2014 Ben Ramsey <http://benramsey.com>
 * @license http://opensource.org/licenses/MIT MIT
 */

namespace Rhumsaa\Uuid;

use InvalidArgumentException;

/**
 * Represents a universally unique identifier (UUID), according to RFC 4122
 *
 * This class provides immutable UUID objects (the Uuid class) and the static
 * methods `uuid1()`, `uuid3()`, `uuid4()`, and `uuid5()` for generating version
 * 1, 3, 4, and 5 UUIDs as specified in RFC 4122.
 *
 * If all you want is a unique ID, you should probably call `uuid1()` or `uuid4()`.
 * Note that `uuid1()` may compromise privacy since it creates a UUID containing
 * the computer’s network address. `uuid4()` creates a random UUID.
 *
 * @see http://tools.ietf.org/html/rfc4122
 * @see http://en.wikipedia.org/wiki/Universally_unique_identifier
 * @see http://docs.python.org/3/library/uuid.html
 * @see http://docs.oracle.com/javase/6/docs/api/java/util/UUID.html
 */
final class Uuid
{
    /**
     * When this namespace is specified, the name string is a fully-qualified domain name.
     *
     * @see http://tools.ietf.org/html/rfc4122#appendix-C
     */
    const NAMESPACE_DNS = '6ba7b810-9dad-11d1-80b4-00c04fd430c8';

    /**
     * When this namespace is specified, the name string is a URL.
     *
     * @see http://tools.ietf.org/html/rfc4122#appendix-C
     */
    const NAMESPACE_URL = '6ba7b811-9dad-11d1-80b4-00c04fd430c8';

    /**
     * When this namespace is specified, the name string is an ISO OID.
     *
     * @see http://tools.ietf.org/html/rfc4122#appendix-C
     */
    const NAMESPACE_OID = '6ba7b812-9dad-11d1-80b4-00c04fd430c8';

    /**
     * When this namespace is specified, the name string is an X.500 DN in DER or a text output format.
     *
     * @see http://tools.ietf.org/html/rfc4122#appendix-C
     */
    const NAMESPACE_X500 = '6ba7b814-9dad-11d1-80b4-00c04fd430c8';