Hash结果如下
<?php $data = "hello world"; foreach (hash_algos() as $v) { $r = hash($v, $data, false); printf("%-12s %3d %s ", $v, strlen($r), $r); } ?> md2 32 d9cce882ee690a5c1ce70beff3a78c77 md4 32 aa010fbc1d14c795d86ef98c95479d17 md5 32 5eb63bbbe01eeed093cb22bb8f5acdc3 sha1 40 2aae6c35c94fcfb415dbe95f408b9ce91ee846ed sha224 56 2f05477fc24bb4faefd86517156dafdecec45b8ad3cf2522a563582b sha256 64 b94d27b9934d3e08a52e52d7da7dabfac484efe37a5380ee9088f7ace2efcde9 sha384 96 fdbd8e75a67f29f701a4e040385e2e23986303ea10239211af907fcbb83578b3e417cb71ce646efd0819dd8c088de1bd sha512 128 309ecc489c12d6eb4cc40f50c902f2b4d0ed77ee511a7c7a9bcd3ca86d4cd86f989dd35bc5ff499670da34255b45b0cfd830e81f605dcf7dc5542e93ae9cd76f ripemd128 32 c52ac4d06245286b33953957be6c6f81 ripemd160 40 98c615784ccb5fe5936fbc0cbe9dfdb408d92f0f ripemd256 64 0d375cf9d9ee95a3bb15f757c81e93bb0ad963edf69dc4d12264031814608e37 ripemd320 80 0e12fe7d075f8e319e07c106917eddb0135e9a10aefb50a8a07ccb0582ff1fa27b95ed5af57fd5c6 whirlpool 128 8d8309ca6af848095bcabaf9a53b1b6ce7f594c1434fd6e5177e7e5c20e76cd30936d8606e7f36acbef8978fea008e6400a975d51abe6ba4923178c7cf90c802 tiger128,3 32 4c8fbddae0b6f25832af45e7c62811bb tiger160,3 40 4c8fbddae0b6f25832af45e7c62811bb64ec3e43 tiger192,3 48 4c8fbddae0b6f25832af45e7c62811bb64ec3e43691e9cc3 tiger128,4 32 24465a3f6e4aa92d903ee535476591e9 tiger160,4 40 24465a3f6e4aa92d903ee535476591e937f3a14d tiger192,4 48 24465a3f6e4aa92d903ee535476591e937f3a14d81c4c7b6 snefru 64 902b49fa8b0828b44d8ac069111899bbfaf51d334485e4b28e90c93f63bb86dd snefru256 64 902b49fa8b0828b44d8ac069111899bbfaf51d334485e4b28e90c93f63bb86dd gost 64 1bb6ce69d2e895a78489c87a0712a2f40258d1fae3a4666c23f8f487bef0e22a gost-crypto 64 c5aa1455afe9f0c440eec3c96ccccb5c8495097572cc0f625278bd0da5ea5e07 adler32 8 1a0b045d crc32 8 7813f744 crc32b 8 0d4a1185 fnv132 8 548da96f fnv1a32 8 d58b3fa7 fnv164 16 7dcf62cdb1910e6f fnv1a64 16 779a65e7023cd2e7 joaat 8 3e4a5a57 haval128,3 32 906c1df7cbe6d318f36ab172f95e89c0 haval160,3 40 6e733b21876e47c2168a122e23d86bdd69e50f95 haval192,3 48 ec67a6a417953fdbf3496502004b6c21b270d5890dedd931 haval224,3 56 766879d9ba1dc9e24a6040908a7ae813a47b08af5c5f3beebcacda48 haval256,3 64 45492c6c8adab277759f4381420799431a037daf6d829b8b5c21104c10f61a92 haval128,4 32 c97d46956b8e3e60acd2bb090c482c5e haval160,4 40 2cb8b12eb5a2561022010c2a2af8795e602fdef2 haval192,4 48 39a281e4e492533b6dfea0af294149ccac771ab87204c9ec haval224,4 56 3d64d34aea48f5e649ed6147da5d29d31c762a937e9e21f4da1f3106 haval256,4 64 0359a526d77e271707c44d9b270e68a394f8486a459f0137ad5e1d02e44c5889 haval128,5 32 8332ad9f32e385d9acd421b63ee04cfc haval160,5 40 d33cf9052d55da9b0f506cb8849097939363e361 haval192,5 48 67c3492878c8fc4819c8589231fcfe69b15b015c1ca48ac5 haval224,5 56 6bedeb6a8676e46413c020c8813c022486ca93353b8a0673fb577ba1 haval256,5 64 f5f6ffcfe39a65ac2c3989430340420341762a6624ebd69b9d08ec1dc4b9f167
性能测试如下：
<?php define('testtime', 1000000); $algos = hash_algos(); foreach($algos as $algo) { $st = microtime(); for($i = 0; $i < testtime; $i++) { hash($algo, microtime().$i); } $et = microtime(); list($ss, $si) = explode(' ', $st); list($es, $ei) = explode(' ', $et); $time[$algo] = $ei + $es - $si - $ss; } asort($time, SORT_NUMERIC); print_r($time); ?> Array ( [fnv1a32] => 1.4528379546356 [fnv164] => 1.4598390410767 [fnv1a64] => 1.4685498960724 [fnv132] => 1.4695508840027 [crc32b] => 1.480463955719 [adler32] => 1.481206043457 [joaat] => 1.4851269485474 [crc32] => 1.508364085907 [md4] => 1.6973789288788 [md5] => 1.7637529927979 [sha1] => 1.932477017334 [tiger128,3] => 1.9683119142761 [tiger160,3] => 1.9759550503387 [ripemd128] => 2.0003409449921 [tiger192,3] => 2.0107291056519 [tiger128,4] => 2.0609339611664 [tiger160,4] => 2.0614830404358 [ripemd256] => 2.1055679496613 [tiger192,4] => 2.1089930283813 [ripemd320] => 2.3564790057831 [ripemd160] => 2.3820580299072 [sha256] => 2.3944439311981 [sha224] => 2.4205659084473 [haval128,3] => 2.5319820201874 [haval224,3] => 2.5319839861755 [haval160,3] => 2.5347460784149 [haval192,3] => 2.5500600071869 [haval256,3] => 2.580485933548 [sha384] => 2.6736448852386 [sha512] => 2.721533025589 [haval224,4] => 2.9019400155029 [haval128,4] => 2.9155439011078 [haval256,4] => 2.9168769813385 [haval160,4] => 2.9341630749512 [haval192,4] => 2.9478991126251 [haval192,5] => 3.1933639251862 [haval256,5] => 3.1942859609985 [haval160,5] => 3.1946619862823 [whirlpool] => 3.1954451004639 [haval128,5] => 3.2122300287323 [haval224,5] => 3.295264964798 [gost] => 4.6756690344391 [gost-crypto] => 4.6819899302826 [snefru] => 6.5784390528107 [snefru256] => 6.6484970919647 [md2] => 11.291653894501 )