Re: Issue with PHP based web service on Fedora 40

[Will McDonald <wmcdonald@xxxxxxxxx>]

On Wed, 6 Nov 2024 at 17:11, Steven P. Ulrick <meow8282@xxxxxxxxx> wrote:

I just did a full install of Fedora 40. It is fully updated.
I am attempting to run Gallery3 on a webserver that I host on this
computer (the one with Fedora 40 on it) I was able to install Gallery3,
but when I attempt to go to the gallery to add pictures, I just get a
plain white screen in the web browser.

Some of you might be thinking about now that this is a Gallery3 issue,
not Fedora. But, when I run php -v, I get the following:

> root@afolkey2:/var/log/httpd# php -v
> PHP Warning:  PHP Startup: Unable to load dynamic library 'mysqli'
> (tried: /usr/lib64/php/modules/mysqli (/usr/lib64/php/modules/mysqli:
> cannot open shared object file: No such file or directory),
> /usr/lib64/php/modules/mysqli.so (/usr
> /lib64/php/modules/mysqli.so: undefined symbol: mysqlnd_global_stats))
> in Unknown on line 0
> PHP Warning:  PHP Startup: Unable to load dynamic library
> '/path/to/extension/mysqli.so' (tried: /path/to/extension/mysqli.so
> (/path/to/extension/mysqli.so: cannot open shared object file: No such
> file or directory), /usr/lib64/php/mod
> ules//path/to/extension/mysqli.so.so
> (/usr/lib64/php/modules//path/to/extension/mysqli.so.so: cannot open
> shared object file: No such file or directory)) in Unknown on line 0
> PHP 8.3.13 (cli) (built: Oct 22 2024 18:39:14) (NTS gcc x86_64)
> Copyright (c) The PHP Group
> Zend Engine v4.3.13, Copyright (c) Zend Technologies
>    with Zend OPcache v8.3.13, Copyright (c), by Zend Technologies

The directory "/usr/lib64/php/modules/mysqli" does NOT exist.
"/usr/lib64/php/modules/mysqli.so (/usr/lib64/php/modules/mysqli.so"
DOES exist

I think there might be some missing steps here? 

1. How did you install PHP?

2. How did you install Mysql for PHP?

3. How did you install Gallery3?

4. Are there any other steps you did that aren't obvious?

I like to try and do stuff like this in a container first so you have a relatively clean way to reproduce stuff:

$ podman run -it registry.fedoraproject.org/fedora:40

[root@bf109911d54b /]# rpm -qa | grep php

[root@bf109911d54b /]# dnf -y install php

<snip>

[root@bf109911d54b /]# php -v
PHP 8.3.13 (cli) (built: Oct 22 2024 18:39:14) (NTS gcc x86_64)
Copyright (c) The PHP Group
Zend Engine v4.3.13, Copyright (c) Zend Technologies
    with Zend OPcache v8.3.13, Copyright (c), by Zend Technologies

[root@bf109911d54b /]# dnf provides /usr/lib64/php/modules/mysqli
Error: No matches found. If searching for a file, try specifying the full path or using a wildcard prefix ("*/") at the beginning.

[root@bf109911d54b /]# dnf provides /usr/lib64/php/modules/mysqli.so
Last metadata expiration check: 0:00:33 ago on Thu Nov  7 01:52:14 2024.
php-mysqlnd-8.3.4-1.fc40.x86_64 : A module for PHP applications that use MySQL databases
Repo        : fedora
Matched from:
Filename    : /usr/lib64/php/modules/mysqli.so

php-mysqlnd-8.3.13-1.fc40.x86_64 : A module for PHP applications that use MySQL databases
Repo        : updates
Matched from:
Filename    : /usr/lib64/php/modules/mysqli.so

[root@bf109911d54b /]# dnf -y install php-mysqlnd

Installed:
  php-mysqlnd-8.3.13-1.fc40.x86_64                                                                                                                           
Complete!

[root@bf109911d54b /]# php -v
PHP 8.3.13 (cli) (built: Oct 22 2024 18:39:14) (NTS gcc x86_64)
Copyright (c) The PHP Group
Zend Engine v4.3.13, Copyright (c) Zend Technologies
    with Zend OPcache v8.3.13, Copyright (c), by Zend Technologies

[root@bf109911d54b /]# rpm -qa | grep mysql
php-mysqlnd-8.3.13-1.fc40.x86_64

Note, at this stage I still don't have MySQL installed (or MariaDB). So if you need to have a local database to support Gallery3 (or a remote DB via ODBC / JDBC or whatever... that's not fulfilled.)

This looks weird/suspect too, specifically '/path/to/extension/':

> PHP Warning:  PHP Startup: Unable to load dynamic library '/path/to/extension/mysqli.so' (tried: /path/to/extension/mysqli.so (/path/to/extension/mysqli.so: cannot open shared object file: No such  file or directory), /usr/lib64/php/modules//path/to/extension/mysqli.so.so

https://www.baeldung.com/linux/mysqli-extension-activate shows the 'mysql-server' package being installed too?

Have you restarted Apache?

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