(PHP 7 >= 7.2.0, PHP 8)
hash_hmac_algos — 返回适用于 hash_hmac 的已注册散列算法列表
此函数没有参数。
返回数字索引数组，包含适用于 hash_hmac() 支持的散列算法列表。
示例 #1 hash_hmac_algos() 示例
<?php
print_r(hash_hmac_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] => haval128,3 [30] => haval160,3 [31] => haval192,3 [32] => haval224,3 [33] => haval256,3 [34] => haval128,4 [35] => haval160,4 [36] => haval192,4 [37] => haval224,4 [38] => haval256,4 [39] => haval128,5 [40] => haval160,5 [41] => haval192,5 [42] => haval224,5 [43] => haval256,5 )
注意:
在 PHP 7.2.0 之前，获取支持的散列算法列表的唯一方法是调用 hash_algos()，该方法也会返回不适合 hash_hmac() 的散列算法。