Re: base64url format

On 9 January 2023 18:49:28 GMT, Sara Golemon <pollita@php.net> wrote: >I've been working with JWTs lately and that means working with Base64URL >format. (Ref: https://www.rfc-editor.org/rfc/rfc4648#section-5 ) >This is essentially the same thing as normal Base64, but instead of '+' and >'/', it uses '-' and '_', respectively. It also allows leaving off >the >training '=' padding characters. > >So far, I've just been including polyfills like this: > >function base64url_decode(string $str): string { > return base64_decode(str_pad(strtr($str, '-_', '+/'), (4 - >(strlen($str) % 4)) % 4, '=')); >} > >function base64_encode(string $str): string { > return rtrim(strtr(base64_encode($str), '+/', '-_'), '='); >} > >These work fine, but they create a LOT of string copies along the way which >shouldn't be necessary. >Would anyone mind if skipped RFC and just added >base64url_encode() and >base64url_decode() to PHP 8.3? Should these be new functions, or options to base64_encode instead? I'd guess base64_decode could just accept both? cheers Derick