500 Error: PHP Fatal error: Call to undefined function array_is_list in ContainerBuilder.php

[Mahdi-Abbariki]

Describe the Bug

After installation and configuration of phpMyAdmin, attempting to access it via the browser results in a 500 error code. The Apache log files indicate the following error:

PHP Fatal error: Uncaught Error: Call to undefined function Symfony\Component\DependencyInjection\array_is_list() in /usr/share/php/Symfony/Component/DependencyInjection/ContainerBuilder.php:1092

To Reproduce

1. Install and configure phpMyAdmin.
2. Open /phpmyadmin in the browser.

Expected Behavior

The phpMyAdmin login page should be displayed.

Server Configuration

• Operating System: Debian 12
• Web Server: Apache
• Database Version: 10.11.6-MariaDB
• PHP Version: 8.0.30
• phpMyAdmin Version: 4:5.2.1+dfsg-1

Client Configuration

• Browser: Chrome
• Operating System: Ubuntu

[williamdes]

This function is a PHP 8.1 function.
https://php.watch/versions/8.1/array_is_list

For some odd reasons you seem to not have the polyfill package that should provide the function.
Is there any chance that you would upgrade to PHP 8.1 ?

See: https://github.com/phpmyadmin/phpmyadmin/wiki/DebianUbuntu

[MauricioFauth]

@williamdes Is it a good idea to bump the PHP minimum version in index.php to the version present in Debian to avoid these type of issues? For the Debian package only, of course.

[williamdes]

That was done and shipped in Ubuntu.
I think that will be required anyway.
Packaging people keep destroying backwards compat one way or another.
See https://bugs.debian.org/1036313
I discussed more with David on IRC and clearly one point of view remains: Debian is shipped with php X. Y, so packages only need to compat with that version.
No fucks given to older versions even if people actually do install them.

I do not share that point of view but it's starting to not be worth my time answering bugs that I did all my possible to avoid existing in the packaging work.

So yeah, php version will be required in some next version of the Debian package.

[Mahdi-Abbariki]

@williamdes Thanks for your response! I appreciate the clarification. Unfortunately, upgrading to PHP 8.1 isn't an option for me at the moment due to various dependencies. However, I was able to successfully install and use phpMyAdmin ^5.2 by installing it via Composer.

[williamdes]

phpMyAdmin on Debian and Ubuntu will now require PHP 8.2 since it is the version shipped with Debian/Ubuntu latest.

https://salsa.debian.org/phpmyadmin-team/phpmyadmin/-/commit/7320f10d11d953e11c50aa8864d401320cea4575

That does not make me happy, but I have no choice.