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php-extension-research
/
php-flame
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PlumpMath/php-flame
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php-flame
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doc
/
hash.php
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hash.php
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<?php
/**
* 补充部分在框架中存在的哈希算法函数
*/
namespace
flame
\
hash
;
/**
* 默认情况 kafka 内部使用的哈希算法(返回 )
* @return mixed 当 $raw = true 时返回 uint32 整数,否则返回对应的定长 HEX 串;
*/
function
murmur2
(
string
$
data
,
bool
$
raw
=
false
) {}
/**
* 一种效率极高且哈希结果理想度高的哈希算法(返回 uint64)
* @param int $seed 用于对哈希结果进行预期内的调整
* @return mixed 当 $raw = true 时返回 uint32 整数,否则返回对应的定长 HEX 串;
*/
function
xxh64
(
string
$
data
,
int
$
seed
=
0
,
bool
$
raw
=
false
) {}
/**
* 根据 EMCA 定义实现的 crc64 哈希(与 Golang 对应 hash/crc64 ECMA 计算值一直)
* @return mixed 当 $raw = true 时返回 uint32 整数,否则返回对应的定长 HEX 串;
*/
function
crc64
(
string
$
data
,
bool
$
raw
=
false
) {}
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