On Wed, Jun 18, 2025, at 13:18, Marc Bennewitz wrote:
> 
> 
> On 16.06.25 19:01, Yogarine wrote:
>> Hi all,
>> 
>> On 16 Jun 2025, at 17:24, Rob Landers <rob@bottled.codes> wrote:
>>> On Mon, Jun 16, 2025, at 16:54, Alexandru Pătrănescu wrote:
>>>> On Mon, Jun 16, 2025 at 4:03 PM Marc Bennewitz <marc@mabe.berlin> wrote:
>>>> Hi all,
>>>> 
>>>> It's 12.5 years only until the timestamps in PHP on 32bit will not work 
>>>> as expected anymore.
>>>> 
>>>> 
>>>> Hi,
>>>> 
>>>> I think that maybe we can already deprecate supporting 32 bit builds.
>>>> And, maybe with PHP 9, or PHP 10, or with a future version that might 
>>>> exist in about 6/7 years, completely drop 32 bits support.
>>>> 
>>>> As far as I checked a bit, all major OSs where PHP could run already 
>>>> dropped or will drop support for 32 bits builds.
>>>> I expect that at some point even the linux kernel will drop support.
>>>> 
>>>> The impacted runtimes will probably be very low.
>>>> 
>>>> -- 
>>>> Alex
>>>> 
>>> 100% agree. We are already running out of space on some bitmasks (there are 
>>> a couple with exactly one bit left, or even none in the case of GC flags) 
>>> for 32 bit support.
>>> 
>>> — Rob
>> I'm reminded of a recent comment by Derick. He mentioned that usually if a 
>> function can't be provided on a specific platform or SAPI, that function is 
>> disabled for that environment specifically. This allows for a polyfill to 
>> provide an alternative implementation. (e.g. `getallheaders()`)
>> 
>> Considering 32-bit builds will not be able to reliable provide the `date()` 
>> function at some point, what if we deprecate, and later disable, these 
>> integer date functions on 32-bit builds specifically? This would have 0 
>> impact for 64-bit users and provide a means for users on legacy or embedded 
>> systems to use an alternative implementation (that perhaps uses a custom 
>> Unix epoch, or numeric strings ¯\_(ツ)_/¯).
> It's a long list of date functions already (see my first mail) and on looking 
> deeper into detail it's not limited to the date extension. Same issues happen 
> on a wide range of standard functions like "filemtime" or 
> "opcache_get_status". Specifically everywhere where a timestamp is involved. 
> Not even talking about the already known behavior differences of functions 
> like "crc32".
> 
> 
> 
>> Alwin
> 
> *Attachments:*
>  • OpenPGP_0x3936ABF753BC88CE.asc
>  • OpenPGP_signature.asc

I dunno. The more I think about it, the more this seems like a systemic issue 
with 32-bit. Meaning this is potentially the wrong layer to try and fix it. 
This will likely have to be addressed at a deeper layer (such as the OS) or a 
higher layer (treating negative numbers differently than positive ones, 
contextually).

— Rob

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