# 预定义常量

下列常量由此扩展定义，且仅在此扩展编译入 PHP 或在运行时动态载入时可用。

Here is a list of hashes which are currently supported by mhash. If a hash is not listed here, but it is listed in the mhash documentation as supported, you can safely assume that this documentation is outdated.

`MHASH_ADLER32` (int)
`MHASH_CRC32` (int)
`MHASH_CRC32B` (int)
`MHASH_CRC32C` (int)
  Available as of PHP 7.4.0.
`MHASH_FNV132` (int)
`MHASH_FNV1A32` (int)
`MHASH_FNV164` (int)
`MHASH_FNV1A64` (int)
`MHASH_GOST` (int)
`MHASH_HAVAL128` (int)
`MHASH_HAVAL160` (int)
`MHASH_HAVAL192` (int)
`MHASH_HAVAL224` (int)
`MHASH_HAVAL256` (int)
`MHASH_JOAAT` (int)
`MHASH_MD2` (int)
`MHASH_MD4` (int)
`MHASH_MD5` (int)
`MHASH_MURMUR3A` (int)
  Available as of PHP 8.1.0.
`MHASH_MURMUR3C` (int)
  Available as of PHP 8.1.0.
`MHASH_MURMUR3F` (int)
  Available as of PHP 8.1.0.
`MHASH_RIPEMD128` (int)
`MHASH_RIPEMD160` (int)
`MHASH_RIPEMD256` (int)
`MHASH_RIPEMD320` (int)
`MHASH_SHA1` (int)
`MHASH_SHA224` (int)
`MHASH_SHA256` (int)
`MHASH_SHA384` (int)
`MHASH_SHA512` (int)
`MHASH_SNEFRU256` (int)
`MHASH_TIGER` (int)
`MHASH_TIGER128` (int)
`MHASH_TIGER160` (int)
`MHASH_WHIRLPOOL` (int)
`MHASH_XXH32` (int)
`MHASH_XXH64` (int)
`MHASH_XXH3` (int)
`MHASH_XXH128` (int)

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