On 05/31/2016 09:59 PM, Nikita Popov wrote:
> On Tue, May 31, 2016 at 9:54 PM, Marc Bennewitz <dev@mabe.berlin
> <mailto:dev@mabe.berlin>> wrote:
>
> Hi,
>
> today I was running into an issue with a function lookup over
> namespace.
>
> https://3v4l.org/qF7cK fails
> https://3v4l.org/evVic works
>
> For me it looks like the function lookup for "is_null" in this
> case gets cached on first use
> and on second call no check will be done if this function exists
> in the current namespace
> before looking in the root namespace.
>
> Because PHP is a dynamic language this behavior looks wrong
> (unexpected) to me
> and also HHVM does handle it as I would expect it.
>
> Thanks,
> Marc
>
>
> This is a known issue: https://bugs.php.net/bug.php?id=64346
Much thanks Nikita for the link. Didn't found it myself.
But this bug ticket doesn't look nice - No comments since 2¹/² years.
Is a suggestion from someone without enough knowledge of the engine /
opcache.
Wouldn't it be better to move this performance feature into opcache and
make it configurable over "opcache.optimization_level
<http://php.net/manual/en/opcache.configuration.php#ini.opcache.optimization-level>"?
>
> Regards,
> Nikita
Thanks,
Marc
