Re: [PHP-DEV] [RFC] Strict Namespace Resolution

[email protected] ("Paul M. Jones") Sat, 18 Jul 2026 13:08:31 -0500

Newsgroups	php.internals
Message-ID	<[email protected]>

Hi Theodore,

> On Jul 17, 2026, at 16:41, Theodore Brown <[email protected]> wrote:
> 
> On Fri, July 17 2026 at 12:39, Paul M. Jones wrote:
> 
>> Primary pushback thus far has not been on the functionality per se but on the directive name itself. The currently-suggested equivalent alternatives are:
>> 
>>    strict_namespace=1            (RFC as-is)
>>    legacy_name_fallback=0        (R. Tommins)
>>    global_fallback=0             (T. Düsterhus)
>>    disable_root_ns_fallback=1    (A. Rock)
>> 
>> Of those, I'd be OK with `global_fallback=0` (though I do still prefer `strict_namespace=1`).
>> 
>> Are there any further suggestions or objections on this point?
> 
> Hi Paul,
> 
> Thank you for working on this RFC! It's essentially the same as my `declare(root_fallback=0)` idea from 2019. [1]

Ah so -- my bad for not including it in the prior art on this RFC.


> I think the `global_fallback=0` alternative from Tim indicates the resulting behavior most clearly, but I don't have a strong preference between this and `strict_namespace=1`.

Very good!


-- pmj