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Date: Thu, 24 Jun 2021 09:56:05 +0200
Message-ID: <CAC5V6ggCFoJs4CduXevMh3BVrMu0fd4JcjC3KpOFO9dw+nY-Ow@mail.gmail.com>
To: Rowan Tommins <rowan.collins@gmail.com>
Cc: internals@lists.php.net
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Subject: Re: [PHP-DEV] Introduce str_left/right In 8.1
From: guilliam.xavier@gmail.com (Guilliam Xavier)

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On Wed, Jun 23, 2021 at 11:54 PM Rowan Tommins <rowan.collins@gmail.com>
wrote:

> On 23/06/2021 22:28, Christoph M. Becker wrote:
> > substr() is about bytes, not characters.  They all may have upvoted the
> > wrong answer.  The only correct answer has just 17 upvotes.
>
>
> Just to out-pedant you, I'll point out that what most people would think
> of as a "character" is neither a byte nor a code point, but a grapheme,
> so I would say *none* of the answers on that page is correct.
>
> $string =3D 'Zoe=CC=88'; // "Zoe\u{0308}" not "Zo\u{00EB}"
>
> var_dump(substr($string, -1));
> var_dump(mb_substr($string, -1));
> var_dump(grapheme_substr($string, -1));
>
> string(1) "=EF=BF=BD"
> string(2) "=CC=88"
> string(3) "e=CC=88"
>
> https://3v4l.org/IMoWQ
>

I thought about the same during the night! Just to complete: there's also
iconv_substr() (but with the same result as mb_substr()), and here are two
links to compare: https://3v4l.org/kU9D5 vs https://3v4l.org/pAvB0

Regards,

--=20
Guilliam Xavier

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