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Date: Fri, 23 Sep 2016 22:58:19 +0100
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To: Stanislav Malyshev <smalyshev@gmail.com>
Cc: Nikita Popov <nikita.ppv@gmail.com>, PHP internals <internals@lists.php.net>
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Subject: Re: [PHP-DEV] [RFC] Namespace-scoped declares
From: danack@basereality.com (Dan Ackroyd)

On 23 September 2016 at 20:45, Stanislav Malyshev <smalyshev@gmail.com> wrote:

> Imagine how
> fun it is if somebody's action in different code module wouldn't just
> mess up some data - it would actually break your code by changing
> language semantics for your code!

If you are concerned about libraries modifying how code is run, the
same theoretical problem exists with libraries that register
autoloaders - 'omg they can totally change what code is even going to
be run, let alone the precise semantic behaviour'.

This turns out not to be a problem, as any library that did that would
lose all of it's users immediately.

For this RFC, it would be usual to only have the namespace_declare()
in the same place as the autoloader(s) are registered; in the
bootstrap file before any real code is run.

cheers
Dan