[PHP-NOTES] note 130546 added to function.hash-algos

I am using PHP 7.4.x on Ubuntu and was considering using the Argon2id hashing algorithm, so I checked if it was present via hash_algos(), but none of the Argon2 algos are listed.

Note: The example output above from PHP 8.1.0 also does not list the Argon2 algos.

I then spent some time checking for an Ubuntu php-argon2 package, but could not find one.  On a whim, I tried just using Argon2id, even though it was not listed -- and it worked!

Command:

   <?php print password_hash('password', PASSWORD_ARGON2ID); ?>

Output:

   $argon2id$v=19$m=65536,t=4,p=1$bjBJbmhaNjVSTm90c3BYTA$fZtLEmXRLn4kF1UOV6OUBmsVwCWNizlwkUQhEd684N0

The description for hash_algos() says it lists all available algorithms, but it clearly does not.  So be aware, and save yourself some time!
----
Server IP: 45.112.84.4
Probable Submitter: 45.112.84.18 (proxied: 38.13.79.164)
----
Manual Page -- https://php.net/manual/en/function.hash-algos.php
Edit        -- https://main.php.net/note/edit/130546
Del: integrated  -- https://main.php.net/note/delete/130546/integrated
Del: useless     -- https://main.php.net/note/delete/130546/useless
Del: bad code    -- https://main.php.net/note/delete/130546/bad+code
Del: spam        -- https://main.php.net/note/delete/130546/spam
Del: non-english -- https://main.php.net/note/delete/130546/non-english
Del: in docs     -- https://main.php.net/note/delete/130546/in+docs
Del: other reasons-- https://main.php.net/note/delete/130546
Reject      -- https://main.php.net/note/reject/130546
Search      -- https://main.php.net/manage/user-notes.php