hash_algos

Return a list of registered hashing algorithms

&reftitle.description; `array` `hash_algos`
&reftitle.parameters; &no.function.parameters;
&reftitle.returnvalues;

Returns a numerically indexed array containing the list of supported hashing algorithms.

&reftitle.changelog;

&Version; | &Description;
8.1.0 | Support for MurmurHash3 and xxHash algorithms has been added.
7.4.0 | Support for crc32c has been added.
7.1.0 | Support for sha512/224, sha512/256, sha3-224, sha3-256, sha3-384 and sha3-512 has been added.

&reftitle.examples;

### `hash_algos` example

As of PHP 8.1.0, `hash_algos` will return the following list of algorithm names.

    <?php
    print_r(hash_algos());
    ?>

&example.outputs.similar;

    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
    )

&reftitle.seealso;

- `hash_hmac_algos`