Re: [gentoo-user] php different version

1 day, 1 emerge --sync, 1 update later: php-7.4 is additionally
installed. for a php application i would expect that 1 php version is
enough. but depending on the use flag this is not the case for
nextcloud and roundcube, 2 versions are installed each.


On Wed, 20 Oct 2021 15:44:27 -0400
Michael Orlitzky <mjo@g.o> wrote:

> On 2021-10-20 19:23:09, zcampe@×××××.com wrote:
> >
> > when i install nextcloud it also installs php-7.3.31 and php-7.4.24,
> > this is probably due to dev-php/imagick-3.5.1
> >
>
> PHP is slotted, so it's not too unusual for multiple versions to be
> installed at the same time. An "emerge --depclean" may later remove
> the older one. But this alone is no cause for alarm.
>
>
> > if i install roundcube with use="change-password" php-8.0.11 is
> > needed.
> >
> > i used use="-imagemagick" for nextcloud, and
> > all packages could agree on php-8.0.11.
> >
> > 1.if an application requires 2 different versions this can't work,
> > apache only uses one or?
>
> No, you're right. Whichever one you've eselected (if you're using
> apache's mod_php) is the one that will be used, and not all of the
> options will work with every installed PHP application. It doesn't
> make a ton of sense, but PHP is relatively stable these days. So, uh,
> good luck.
>
>
> > 2.if in the ebuild of dev-php/imagick-3.5.1
> > USE_PHP="php7-3 php7-4 php8-0"
> > what does that mean?
>
> C-language extensions like pecl-imagick are compiled against PHP. The
> USE_PHP variable declares which versions they may be compiled
> against. Then the user-facing variable PHP_TARGETS says which ones you
> want. What you ultimately get is the intersection of USE_PHP and
> PHP_TARGETS.
>