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Date: Tue, 16 Jul 2013 01:16:15 +0200
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To: internals@lists.php.net, krebs.seb@gmail.com
Content-Type: multipart/alternative; boundary=001a11c2e0f013f07c04e1950c49
Subject: Re: [PHP-DEV] PHP proposal on modular systems
From: giuseppe.ronca2@gmail.com (Giuseppe Ronca)

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You can have multiple objects from the same type in different
> implemenations in the same process?
>


No i'm not saying it.



> What should happen, when I instanciate an object of "test" in version X and
> pass it to a function, that expect it as version Y? To be consistent PHP
> _must_ trigger an error too, if something from the locally included file
> leaves its scope
> class foo {
>      public static function bar () {
>           local_include "test.php" / / file which includes "test" class;
>           return new test (); // <-- error here
>      }
> }
> Because else it is not a local scope anymore.
>


the concept as i said is the same of "nesting" a class inside another ( or
dynamically namespacing a file )


if two different components need "Library v1.0" and "Library v2.0" .. they
will probably have same classes and namespaces ( but the code is not the
same ). So how could we use both lib at the same time?   Actually php can't
load classes in a scope way so you can't do it in any way on global scope.

nesting dynamically libraries inside a namespace or a class , we can create
objects that can be accessed only throught their root
namespace/class...something like:

new Version1\ExternalLibrary\FooClass();

new Version2\ExternalLibrary\FooClass();

and also Composer will thankyou about it since they can solve automatically
problems .



> Backward compatibility (or compatibility in general) between component is
> something the plugin maintainer should take care of, not the language.
> Regards,
> Sebastian



i'm talking about backward compatibility of php version...not external
plugins etc...i think that my idea doesn't require any change to php apps
to adapt their code.

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