Req->Doc #75266 [Opn]: hash_algos doesnt work properly for listing HMAC algos

Edit report at https://bugs.php.net/bug.php?id=75266&edit=1 ID: 75266 Updated by: requinix@php.net Reported by: phpdoc at mail dot my1 dot info Summary: hash_algos doesnt work properly for listing HMAC algos Status: Open -Type: Feature/Change Request +Type: Documentation Problem Package: *Encryption and hash functions Operating System: Win8.1 x64 PHP Version: 7.2.0RC2 Block user comment: N Private report: N New Comment: PHP 7.2 will introduce a function specifically for this: array hash_hmac_algos ( void ) Return a list of registered hashing algorithms suitable for hash_hmac I don't think documentation has been written for it yet. There's also a minor issue where hash_hmac_algos() isn't listed in the New Functions section of UPGRADING. Previous Comments: ------------------------------------------------------------------------ [2017-09-27 09:41:29] phpdoc at mail dot my1 dot info Description: ------------ --- From manual page: http://www.php.net/function.hash-hmac --- This is a mix of a doc problem and a feature request. Simply said the doc says, that one should refer to the hash_algos funtion to see what can be used for HMACs but that's not entirely true, as it contains algorithms that cant be used for HMAC. while I know that it's totally stupid to use things like CRC32 or Adler32 for HMACs, but this doesnt change that there isnt a proper list fuunction for HMACs. Test script: --------------- <?php $garray=[]; $barray=[]; foreach (hash_algos() as $hashx) { $h=hash_hmac($hashx,"hello","hello"); if($h) {$garray[$hashx]=$h;} else {$barray[$hashx]=$h;} } var_dump($garray,$barray); if(count($barray)>0) { echo "hashes that dont work for HMAC are: ".implode(", ",array_keys($barray)); } else { echo "all hashes are compatible with HMAC" } ?> Expected result: ---------------- a list of algos and their HMACs, an empty array for the hashes that dont work as well as the output "all hashes are compatible with HMAC" Actual result: -------------- 2 Lists of algos one which has working hmacs and another which has false as the value, as well as the output: "hashes that dont work for HMAC are: adler32, crc32, crc32b, fnv132, fnv1a32, fnv164, fnv1a64, joaat" ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=75266&edit=1