On Friday 12 September 2025 22:13:04 (+02:00), Soner Sayakci wrote:
> Hey,
>
> I would like to load PHP extensions by environment variables in a
> containerized environment. All existing solutions are moving files in an
> entrypoint and this does not work for read-only containers. Why this?
> Extensions like Blackfire/XDebug/OpenTelemetry/Tideways do not like each
to
> run at the same time, and having to build less containers simplifies a
lot.
>
> It's already possible to use environment variables in the php.ini like
so:
>
> extension=${PHP_PROFILER}
>
> So it's possible to toggle the extensions already, the only thing that
is
> not working is passing an empty string (I don't want any profiler). Then
we
> get warnings like: Warning: PHP Startup: Unable to load dynamic library
'"
A warning is only a warning. You likely want to see it if the parameter is
empty as it is *likely* unexpected.
>
> Therefore I opened a pull request to ignore extension entries with empty
> strings, so this works with that case too. Looking for feedback in the
pull
> request https://github.com/php/php-src/pull/19816
Commented there with the long version + a small nitpick as your report is
wrong for the directive and the extensions you reference above: Those are
all Zend extensions, not just ordinariy extensions. However: If you provie
a non-zero-length-string for an extension you get a much more enhanced
diagnostic message about which files have tried. In your empty string case,
not more files have been tried. So please feel free to add more rationale
what kind of issue is causing you the warning.
Otherwise I'm not really booked on the fact that providing an empty
directive value per an ini file can astute a non-warning on any directive
that configures the PHP runtime.
Especially as you give the use-case of a build procedure here, double check
you're not trying to solve a problem in your build procedure by
(needlessly) suppressing PHP binary diagnostics --- you should be able to
suppress on your end given the SUCCESS exit code.
What do you think=
-- hakre
