[PHP-DEV] base64_encode without padding

[Remi Collet]

I think padding should be optional (on by default to keep BC)

Of course in user land, simple to write

  $enc = trim(base64_encode('foo'), '=');

This proposal allow to simply use

  $enc = base64_encode('foo', PHP_BASE64_NO_PADDING);

And also expose it for extension as

  PHPAPI extern zend_string *php_base64_encode_ex
    (const unsigned char *, size_t, zend_long flags);


Use case: for ARGON2 password hashing
see https://github.com/php/php-src/pull/13635

It may seems ugly to add and remove th padding char

Is a RFC needed for such a minor feature ?


Remi