Files
php-uuid/src/Codec/GuidStringCodec.php
T
2015-07-16 10:01:24 -05:00

67 lines
1.8 KiB
PHP

<?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
* @link https://benramsey.com/projects/ramsey-uuid/ Documentation
* @link https://packagist.org/packages/ramsey/uuid Packagist
* @link https://github.com/ramsey/uuid GitHub
*/
namespace Ramsey\Uuid\Codec;
use Ramsey\Uuid\UuidInterface;
use Ramsey\Uuid\Uuid;
class GuidStringCodec extends StringCodec
{
public function encode(UuidInterface $uuid)
{
$components = array_values($uuid->getFieldsHex());
// Swap byte-order on the first three fields
$this->swapFields($components);
return vsprintf(
'%08s-%04s-%04s-%02s%02s-%012s',
$components
);
}
public function encodeBinary(UuidInterface $uuid)
{
$components = array_values($uuid->getFieldsHex());
return hex2bin(implode('', $components));
}
public function decode($encodedUuid)
{
$components = $this->extractComponents($encodedUuid);
$this->swapFields($components);
return $this->getBuilder()->build($this, $this->getFields($components));
}
public function decodeBytes($bytes)
{
return parent::decode(bin2hex($bytes));
}
protected function swapFields(array & $components)
{
$hex = unpack('H*', pack('V', hexdec($components[0])));
$components[0] = $hex[1];
$hex = unpack('H*', pack('v', hexdec($components[1])));
$components[1] = $hex[1];
$hex = unpack('H*', pack('v', hexdec($components[2])));
$components[2] = $hex[1];
}
}