File manager - Edit - /home/linknsbh/linkat.online/vendor/ramsey/uuid/src/Codec/OrderedTimeCodec.php
Back
<?php /** * This file is part of the ramsey/uuid library * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. * * @copyright Copyright (c) Ben Ramsey <ben@benramsey.com> * @license http://opensource.org/licenses/MIT MIT */ declare(strict_types=1); namespace Ramsey\Uuid\Codec; use Ramsey\Uuid\Exception\InvalidArgumentException; use Ramsey\Uuid\Exception\UnsupportedOperationException; use Ramsey\Uuid\Rfc4122\FieldsInterface as Rfc4122FieldsInterface; use Ramsey\Uuid\Uuid; use Ramsey\Uuid\UuidInterface; use function strlen; use function substr; /** * OrderedTimeCodec encodes and decodes a UUID, optimizing the byte order for more efficient storage * * For binary representations of version 1 UUID, this codec may be used to reorganize the time fields, making the UUID * closer to sequential when storing the bytes. According to Percona, this optimization can improve database INSERT and * SELECT statements using the UUID column as a key. * * The string representation of the UUID will remain unchanged. Only the binary representation is reordered. * * PLEASE NOTE: Binary representations of UUIDs encoded with this codec must be decoded with this codec. Decoding using * another codec can result in malformed UUIDs. * * @deprecated Please migrate to {@link https://uuid.ramsey.dev/en/stable/rfc4122/version6.html Version 6, reordered time-based UUIDs}. * * @link https://www.percona.com/blog/2014/12/19/store-uuid-optimized-way/ Storing UUID Values in MySQL * * @immutable */ class OrderedTimeCodec extends StringCodec { /** * Returns a binary string representation of a UUID, with the timestamp fields rearranged for optimized storage * * @return non-empty-string */ public function encodeBinary(UuidInterface $uuid): string { if ( /** @phpstan-ignore possiblyImpure.methodCall */ !($uuid->getFields() instanceof Rfc4122FieldsInterface) /** @phpstan-ignore possiblyImpure.methodCall */ || $uuid->getFields()->getVersion() !== Uuid::UUID_TYPE_TIME ) { throw new InvalidArgumentException('Expected version 1 (time-based) UUID'); } /** @phpstan-ignore possiblyImpure.methodCall */ $bytes = $uuid->getFields()->getBytes(); return $bytes[6] . $bytes[7] . $bytes[4] . $bytes[5] . $bytes[0] . $bytes[1] . $bytes[2] . $bytes[3] . substr($bytes, 8); } /** * Returns a UuidInterface derived from an ordered-time binary string representation * * @throws InvalidArgumentException if $bytes is an invalid length * * @inheritDoc */ public function decodeBytes(string $bytes): UuidInterface { if (strlen($bytes) !== 16) { throw new InvalidArgumentException('$bytes string should contain 16 characters.'); } // Rearrange the bytes to their original order. $rearrangedBytes = $bytes[4] . $bytes[5] . $bytes[6] . $bytes[7] . $bytes[2] . $bytes[3] . $bytes[0] . $bytes[1] . substr($bytes, 8); $uuid = parent::decodeBytes($rearrangedBytes); /** @phpstan-ignore possiblyImpure.methodCall */ $fields = $uuid->getFields(); if (!$fields instanceof Rfc4122FieldsInterface || $fields->getVersion() !== Uuid::UUID_TYPE_TIME) { throw new UnsupportedOperationException( 'Attempting to decode a non-time-based UUID using OrderedTimeCodec', ); } return $uuid; } }
| ver. 1.4 |
Github
|
.
| PHP 8.2.31 | Generation time: 7.31 |
proxy
|
phpinfo
|
Settings