PHP 8.0 support for v2 about laminas-cache HOT 10 CLOSED

I haven't dug deep, but would it be possible to wire things up, to make these adapters optional? Requiring only needed adapters would seem to make sense, perhaps listing them in "suggest" block, instead of forcing the kitchen sink.

On PHP8 right now, doctrine-module requires laminas-cache, laminas-cache requires various adapters that do not support PHP8 (in their composer.json).

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@Saeven

Requiring only needed adapters would seem to make sense, perhaps listing them in "suggest" block, instead of forcing the kitchen sink.

Please check the documentation on this topic. There will you find a solution for the current version 2.10 and higher, also how it works in version 3:

https://docs.laminas.dev/laminas-cache/installation/

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Just a side-note here.

I am pretty sure that there wont be support for PHP 8.0 on:

• laminas-cache-storage-adapter-wincache
• laminas-cache-storage-adapter-xcache
• laminas-cache-storage-adapter-mongodb
• laminas-cache-storage-adapter-apc

I am not that sure about:

• laminas-cache-storage-adapter-zend-server
• laminas-cache-storage-adapter-dba

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Thank you. I had tried including 3.0.x-dev, which is what motivated my question above. Under 3.0.x, the issue perdures:

    - laminas/laminas-cache 3.0.x-dev requires laminas/laminas-cache-storage-adapter-apc ^1.0 -> satisfiable by laminas/laminas-cache-storage-adapter-apc[1.0.0, 1.0.1, 1.0.x-dev, 1.1.x-dev].

I can appreciate that it could just be, that the work is not complete. I'll say thank you in this case. Will be good to avoid having to add all of these replace directives.

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v3.0 is still in development and thus you should not use it.
v2.11.0 was released with support for PHP 8.0 along with plenty of cache adapters which can be seen in the initial post.

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Closing this as v2 is mostly PHP 8.0 compatible.

• Those adapters which can support PHP 8.0 do support PHP 8.0.
• Those adapters which have no support for PHP 8.0 and wont ever have support for it, were abandoned
• Only adapter which is still pending is laminas/laminas-cache-storage-adapter-memcached which can be tracked here laminas/laminas-cache-storage-adapter-memcached#2

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Mostly compatible, but not usable. Installing this library on PHP 8 will not work because of the underlying requirements.

Updating dependencies
 Your requirements could not be resolved to an installable set of packages.
 
   Problem 1
     - laminas/laminas-cache-storage-adapter-apc[1.0.0, ..., 1.0.1] require php ^5.6 || ^7.0 -> your php version (8.0.11) does not satisfy that requirement.
     - laminas/laminas-cache 2.13.0 requires laminas/laminas-cache-storage-adapter-apc ^1.0 -> satisfiable by laminas/laminas-cache-storage-adapter-apc[1.0.0, 1.0.1].
     - Root composer.json requires laminas/laminas-cache ^2.13.0 -> satisfiable by laminas/laminas-cache[2.13.0].

So should this issue not stay open until these dependencies are supporting PHP 8.0 or the dependencies are no longer required?

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@halfpastfouram

Installing this library on PHP 8 will not work because of the underlying requirements.

Everything is correct here. I think you missed the instructions for installation.

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The instruction worked for most of our projects.
But there was one project, which depended on multiple projects in which the replacement was done.

Adding replaces in the main project composer will throw the following error:

[root@ffc765ad176a html]# php -d memory_limit=8G composer.phar -W update
Loading composer repositories with package information
In Laminas\DependencyPlugin\DependencyRewriterV2::onPrePoolCreate
Updating dependencies
Your requirements could not be resolved to an installable set of packages.

  Problem 1
    - vendor/main-project is present at version dev-master and cannot be modified by Composer
    - Root composer.json requires vendor/sub-project-1 ^1.5 -> satisfiable by vendor/sub-project-1[v1.5.0].
    - vendor/sub-project-2[v1.4.0], vendor/sub-project-1[v1.5.0] cannot be installed as that would require removing vendor/main-project[dev-master]. They all replace laminas/laminas-cache-storage-adapter-apc and thus cannot coexist.
    - Root composer.json requires vendor/sub-project-2 ^1.4 -> satisfiable by vendor/sub-project-2[v1.4.0].

Use the option --with-all-dependencies (-W) to allow upgrades, downgrades and removals for packages currently locked to specific versions.

Without the replaces in the main project the following errors are thrown:

[root@ffc765ad176a html]# php -d memory_limit=8G composer.phar -W update
Loading composer repositories with package information
In Laminas\DependencyPlugin\DependencyRewriterV2::onPrePoolCreate
Updating dependencies
Your requirements could not be resolved to an installable set of packages.

  Problem 1
    - Root composer.json requires vendor/sub-project-1 ^1.5 -> satisfiable by vendor/sub-project-1[v1.5.0].
    - Only one of these can be installed: laminas/laminas-cache-storage-adapter-zend-server[1.0.0, 1.0.1], vendor/sub-project-2[v1.4.0], vendor/sub-project-1[v1.5.0]. [vendor/sub-project-2, vendor/sub-project-1] replace laminas/laminas-cache-storage-adapter-zend-server and thus cannot coexist with it.
    - Root composer.json requires vendor/sub-project-2 ^1.4 -> satisfiable by vendor/sub-project-2[v1.4.0].

Use the option --with-all-dependencies (-W) to allow upgrades, downgrades and removals for packages currently locked to specific versions.

Do you have any hints/ideas how we could circumnavigate this issue?
Would an "archived-projects" composer package which replaces all archived repos and require this in all the subprojects do the trick?
Are there any easier methods?

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@plorenz-etes I've created a dedicated "issue" for your question. Lets continue there.

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