(PHP 5 >= 5.1.2, PHP 7, PHP 8, PECL hash >= 1.1)
hash_algos — 返回已注册的散列算法列表
此函数没有参数。
返回一个数值索引的数组， 包含了受支持的散列算法名称。
| 版本 | 说明 |
|---|---|
| 8.1.0 | 新增对 MurmurHash3 和 xxHash 算法的支持。 |
| 7.4.0 | 支持 crc32c。 |
| 7.1.0 | 加入 sha512/224，sha512/256，sha3-224，sha3-256，sha3-384 以及 sha3-512 算法的支持。 |
示例 #1 hash_algos() 示例
在 PHP 8.1.0 中，hash_algos() 会返回下表所示的算法清单：
<?php
print_r(hash_algos());
?>以上示例的输出类似于：
Array
(
[0] => md2
[1] => md4
[2] => md5
[3] => sha1
[4] => sha224
[5] => sha256
[6] => sha384
[7] => sha512/224
[8] => sha512/256
[9] => sha512
[10] => sha3-224
[11] => sha3-256
[12] => sha3-384
[13] => sha3-512
[14] => ripemd128
[15] => ripemd160
[16] => ripemd256
[17] => ripemd320
[18] => whirlpool
[19] => tiger128,3
[20] => tiger160,3
[21] => tiger192,3
[22] => tiger128,4
[23] => tiger160,4
[24] => tiger192,4
[25] => snefru
[26] => snefru256
[27] => gost
[28] => gost-crypto
[29] => adler32
[30] => crc32
[31] => crc32b
[32] => crc32c
[33] => fnv132
[34] => fnv1a32
[35] => fnv164
[36] => fnv1a64
[37] => joaat
[38] => murmur3a
[39] => murmur3c
[40] => murmur3f
[41] => xxh32
[42] => xxh64
[43] => xxh3
[44] => xxh128
[45] => haval128,3
[46] => haval160,3
[47] => haval192,3
[48] => haval224,3
[49] => haval256,3
[50] => haval128,4
[51] => haval160,4
[52] => haval192,4
[53] => haval224,4
[54] => haval256,4
[55] => haval128,5
[56] => haval160,5
[57] => haval192,5
[58] => haval224,5
[59] => haval256,5
)