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Date: Wed, 25 Feb 2015 16:58:41 +0400
Message-ID: <CA+9eiLs_hgD=i1RbiUMEg_ho9rF=eveMmrs5mtvuksVrf-2_8g@mail.gmail.com>
To: Shashank Kumar <shashankkumar.me@gmail.com>
Cc: Anthony Ferrara <ircmaxell@gmail.com>, 
	"internals@lists.php.net" <internals@lists.php.net>
Content-Type: multipart/alternative; boundary=001a1136a0eadd65c8050fe93193
Subject: Re: [PHP-DEV] Re: [RFC-Discuss] Scalar Type Declarations v0.5
From: dmitry@zend.com (Dmitry Stogov)

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Content-Type: text/plain; charset=UTF-8

On Wed, Feb 25, 2015 at 3:54 PM, Shashank Kumar <shashankkumar.me@gmail.com>
wrote:

> On Wed, Feb 25, 2015 at 4:30 AM, Dmitry Stogov <dmitry@zend.com> wrote:
>
>> anyone may tell, what this will print without running :)
>>
>> main.php
>> ========
>> <?php
>> declare(strict_types=1)
>> include "a.php";
>> include "b.php";
>> var_dump(foo("5"));
>> ?>
>>
>> a.php
>> =====
>> <?php
>> declare(strict_types=0)
>> function foo(string $a): string {
>>     bar($a);
>>     return $a;
>> }
>> ?>
>>
>> b.php
>> =====
>> <?php
>> declare(strict_types=1)
>> function bar(int &$a) {
>>     var_dump($a);
>> }
>> ?>
>>
>> Thank. Dmitry.
>>
>>
> As I understand the proposal and above example, it's possible to change
> the 'strict_type' settings per file.
> So, for an enterprise application being developed over many years, it's a
> very realistic scenario
> that this setting will be different in different files especially if
> coding conventions are not followed (happens very often).
>
> Does that mean when reading or writing code, in addition to checking the
> signature of a function,
> I have to check the 'strict_types' setting at the top as well, to
> understand how that signature behaves?
>

I think you should check it in the top line of the file where the function
was called from.

Thanks. Dmitry.


>
> Thanks
> Shashank
>

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