#### hash_algos * * * * * (PHP 5 >= 5.1.2, PHP 7, PECL hash >= 1.1) hash_algos — 返回已注册的哈希算法列表 #### 说明 ~~~ array hash_algos ( void ) ~~~ 返回值 返回一个数值索引的数组， 包含了受支持的哈希算法名称。 范例 Example #1 hash_algos() 例程 在 PHP 5.6.0 中，hash_algos() 会返回下表所示的算法清单： ~~~ <?php print_r(hash_algos()); ?> ~~~ 以上例程的输出类似于： > Array > ( > [0] => md2 > [1] => md4 > [2] => md5 > [3] => sha1 > [4] => sha224 > [5] => sha256 > [6] => sha384 > [7] => sha512 > [8] => ripemd128 > [9] => ripemd160 > [10] => ripemd256 > [11] => ripemd320 > [12] => whirlpool > [13] => tiger128,3 > [14] => tiger160,3 > [15] => tiger192,3 > [16] => tiger128,4 > [17] => tiger160,4 > [18] => tiger192,4 > [19] => snefru > [20] => snefru256 > [21] => gost > [22] => gost-crypto > [23] => adler32 > [24] => crc32 > [25] => crc32b > [26] => fnv132 > [27] => fnv1a32 > [28] => fnv164 > [29] => fnv1a64 > [30] => joaat > [31] => haval128,3 > [32] => haval160,3 > [33] => haval192,3 > [34] => haval224,3 > [35] => haval256,3 > [36] => haval128,4 > [37] => haval160,4 > [38] => haval192,4 > [39] => haval224,4 > [40] => haval256,4 > [41] => haval128,5 > [42] => haval160,5 > [43] => haval192,5 > [44] => haval224,5 > [45] => haval256,5 > )