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Date: Thu, 20 Mar 2025 15:31:38 +0900
Message-ID: <CAEPPVa38tgc=K5Hgcf+-d7JNfi+v97fjFQpwA0J7cOMCz1FxNw@mail.gmail.com>
Subject: Fwd: [PHP-DEV] Potential RFC: mb_rawurlencode() ?
To: php internals <internals@lists.php.net>
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From: youkidearitai@gmail.com (youkidearitai)

---------- Forwarded message ---------
From: youkidearitai <youkidearitai@gmail.com>
Date: 2025=E5=B9=B43=E6=9C=8820=E6=97=A5(=E6=9C=A8) 14:41
Subject: Re: [PHP-DEV] Potential RFC: mb_rawurlencode() ?
To: Paul M. Jones <pmjones@pmjones.io>


2025=E5=B9=B43=E6=9C=8819=E6=97=A5(=E6=B0=B4) 2:52 Paul M. Jones <pmjones@p=
mjones.io>:
>
> Hi all,
>
> The discussion around WHATWG-URL on this list, as well as my work coordin=
ating Uri-Interop <https://github.com/uri-interop/interface>, lead me to th=
ink PHP needs a multibyte equivalent of rawurlencode().
>
> Broadly speaking, as far as I can tell:
>
> - For an RFC 3986 URI, delimiters need to be percent-encoded, as well as =
non-ASCII characters.
> - For an RFC 3987 IRI, delimiters need to be percent-encoded, but UCS cha=
racters do not.
>
> (There are other details but I think you get the idea.)
>
> The rawurlencode() function does fine for URIs, but not for IRIs. Using r=
awurlencode() for an IRI will encode multibyte characters when it should le=
ave them alone. For example:
>
> ```
> $val =3D 'f=C3=BC bar';
>
> $uriPath =3D '/heads/' . rawurlencode($val) . '/tails/';
> assert($uriPath =3D=3D=3D '/heads/f%C3%BC%20bar/tails/'); // true
>
> $iriPath =3D '/heads/' . rawurlencode($val) . '/tails/');
> assert($iriPath =3D=3D=3D '/heads/f=C3=BC bar/tails/'; // false
> ```
>
> (This might apply to WHATWG-URL component construction as well.)
>
> Have I missed something, either in the specs or in PHP itself?
>
> If not, how do we feel about an RFC for mb_rawurlencode()? A naive userla=
nd implementation might look something like the code below.
>
> Thoughts?
>
> * * *
>
> ```php
> function mb_rawurlencode(string $string) : string
> {
>     $encoded =3D '';
>
>     foreach (mb_str_split($string) as $char) {
>         $encoded .=3D match ($char) {
>             chr(0) =3D> "%00",
>             chr(1) =3D> "%01",
>             chr(2) =3D> "%02",
>             chr(3) =3D> "%03",
>             chr(4) =3D> "%04",
>             chr(5) =3D> "%05",
>             chr(6) =3D> "%06",
>             chr(7) =3D> "%07",
>             chr(8) =3D> "%08",
>             chr(9) =3D> "%09",
>             chr(10) =3D> "%0A",
>             chr(11) =3D> "%0B",
>             chr(12) =3D> "%0C",
>             chr(13) =3D> "%0D",
>             chr(14) =3D> "%0E",
>             chr(15) =3D> "%0F",
>             chr(16) =3D> "%10",
>             chr(17) =3D> "%11",
>             chr(18) =3D> "%12",
>             chr(19) =3D> "%13",
>             chr(20) =3D> "%14",
>             chr(21) =3D> "%15",
>             chr(22) =3D> "%16",
>             chr(23) =3D> "%17",
>             chr(24) =3D> "%18",
>             chr(25) =3D> "%19",
>             chr(26) =3D> "%1A",
>             chr(27) =3D> "%1B",
>             chr(28) =3D> "%1C",
>             chr(29) =3D> "%1D",
>             chr(30) =3D> "%1E",
>             chr(31) =3D> "%1F",
>             chr(127) =3D> "%7F",
>             "!" =3D> '%21',
>             "#" =3D> '%23',
>             "$" =3D> '%24',
>             "%" =3D> '%25',
>             "&" =3D> '%26',
>             "'" =3D> '%27',
>             "(" =3D> '%28',
>             ")" =3D> '%29',
>             "*" =3D> '%2A',
>             "+" =3D> '%2B',
>             "," =3D> '%2C',
>             "/" =3D> '%2F',
>             ":" =3D> '%3A',
>             ";" =3D> '%3B',
>             "=3D" =3D> '%3D',
>             "?" =3D> '%3F',
>             "[" =3D> '%5B',
>             "]" =3D> '%5D',
>             default =3D> $char,
>         };
>     }
>
>     return $encoded;
> }
> ```
>
> * * *
>
>
> -- pmj

Hi, Paul.

I think signature is below:

```php
function mb_rawurlencode(string $string, string $encode): string {}
```

Because the mbstring function is other than Unicode (ISO-8859-1 to
ISO-8859-16, Shift_JIS, EUC-* etc).
Other than that I don't know yet


Oops, I missing to send to internals.
Sorry resend this is.

Yuya

--=20
---------------------------
Yuya Hamada (tekimen)
- https://tekitoh-memdhoi.info
- https://github.com/youkidearitai
-----------------------------