<?php
namespace Flexihash\Hasher;
/**
* Uses CRC32 to hash a value into a signed 32bit int address space.
* Under 32bit PHP this (safely) overflows into negatives ints.
*
* @author Paul Annesley
* @license http://www.opensource.org/licenses/mit-license.php
*/
class Crc32Hasher implements HasherInterface
{
public function hash($string)
{
return crc32($string);
}
}Hash, generally translated as "hash", but also directly transliterated as "hash", is to convert input of any length (also called pre-mapping, pre-image) into a fixed length through a hash algorithm The output is the hash value. This conversion is a compressed mapping, that is, the space of hash values is usually much smaller than the space of inputs. Different inputs may hash into the same output, so it is impossible to uniquely determine the input value from the hash value. Simply put, it is a function that compresses a message of any length into a message digest of a fixed length.
HASH function (computer algorithm field)
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