Installing multiple PHP versions on Rocky 9

This is the first time I've ever had to install a different PHP version from the OS, so sorry if this seems newbie.
I've installed the REMI repo PHP 8.0 - 8.4 versions on my system, and I'm trying to add them to the ISPConfig control panel. I need some help with the locations for things to add the version entries.
First, if I don't assign the new version to a specific client, will it then be available to all clients?
Second, I can't seem to find the php.ini files for the different versions. They aren't located under the /opt/remi directory where the binaries are located, and I can't find any reference to specific versions under /etc either.
any reference to filling in all the blanks for the FastCGI, PHP-FPM and PHP-CLI for Rocky/CentOS in general would be appreciated - didn't find any specifics when searching, it was mostly Ubuntu related.
Thanks.

 

I don't use FastCGI and it is not recommended to use it anymore because FPM is superior, but I believe the FastCGI settings for Remi's PHP builds are:
FastCGI settings:

Code:

Binary: /opt/remi/php<version>/root/usr/bin/php-cgi
PHP INI: /etc/opt/remi/php<version>

FPM settings:
In case of systemd (so in your case), otherwise one needs to use the full path to the sysv-init service file:

Code:

PHP-FPM INIT Script: php<version>-php-fpm
Path to php.ini: /etc/opt/remi/php<version>
PHP-FPM pool directory: /etc/opt/remi/php<version>/php-fpm.d

CLI settings:

Code:

PHP CLI binary: /opt/remi/php<version>/root/usr/bin/php

Example for PHP 8.0:

Code:

PHP Jailkit section: php8_0

You'll need to lookup the /etc/jailkit/jk_init.ini and how the PHP sections are named, but usually it follows the pattern php<number>_<number>



In pictures, for example the settings for PHP 8.3 from Remi (don't mind the German):

 

SO much appreciated - i'll give it a shot.
Thanks!

 

Till,
Can you answer this part:

 

thank you much!

 

worked like a charm here are some other commands that might be useful to anyone else...
restart a specific version of PHP after you've made changes to the INI file

Code:

service php84-php-fpm restart

install a specific PHP version

Code:

yum install php84

install a specific PHP extension

Code:

yum install php84-php-mysql

for those that need to add the new version to ISPConfig, enter this info (with version numbers changed accordingly) to each of the respective tabs

Code:

/opt/remi/php84/root/usr/bin/php-cgi
/etc/opt/remi/php84

php84-php-fpm
/etc/opt/remi/php84
/etc/opt/remi/php84/php-fpm.d
(blank)

/opt/remi/php84/root/usr/bin/php
php8_4