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Date: Wed, 21 Sep 2016 18:34:56 +0200
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To: Ryan Pallas <derokorian@gmail.com>
Cc: Nikita Popov <nikita.ppv@gmail.com>, 
	"internals@lists.php.net" <internals@lists.php.net>
Content-Type: multipart/alternative; boundary=089e0122ebce560177053d07215d
Subject: Re: [PHP-DEV] Fix ReflectionType::__toString() BC break
From: nicolas.grekas@gmail.com (Nicolas Grekas)

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>
> I'm not so sure its a BC though. Technically nullable types don't exist in
> 7.0 and as such would be impossible to return said question mark. Its only
> adding support for a new feature, not changing how an existing feature
> works IMO. If nullable types had been in 7.0 its highly probably, that
> __toString would have returned the leading question mark back then.
>

Here is the BC break: https://3v4l.org/VUbIS

As light as it looks to be, the output on PHP7.1RC2 is not the same as in
PHP7.0.
Yet, __toString() is the only public interface that is available on PHP 7.0,
so people have already built things on top.


Nicolas
p.s. to Nikita: my bad for the too short quote...

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