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<?php
declare(strict_types=1);
/**
* This file is part of Esi\ConsistentHash.
*
* (c) Eric Sizemore <[email protected]>
* (c) Paul Annesley <[email protected]>
* This source file is subject to the MIT license. For the full copyright and
* license information, please view the LICENSE file that was distributed with
* this source code.
*/
namespace Esi\ConsistentHash\Hasher;
* Uses XXH32 to hash a value into a 32bit int.
* @see https://xxhash.com/
class Xxh32Hasher implements HasherInterface
{
* {@inheritDoc}
* 8 hexits = 32bit, which also allows us to forego having to check whether
* it is over PHP_INT_MAX.
* The substring is converted to an int since hex strings sometimes get
* treated as ints if all digits are ints and this results in unexpected
* sorting order.
public function hash(string $string): int
return (int) hexdec(substr(hash('xxh32', $string), 0, 8));
}
ericsizemore /
consistent-hash
