SIMPLE: Add PHP version identifier to php.ini file

[Yousha]

Description

Problem:
Currently, php.ini config file does NOT contain any explicit reference to which PHP version it is associated with. This creates several challenges:

• When users have multiple PHP versions installed (7.4, 8.0, 8.1, 8.2, 8.3), it's difficult to determine which php.ini file belongs to which version without running php --version or checking directory structures.
• During server migrations or deployments, admins might accidentally use an php.ini file from a different PHP version.
• Can be used by php.ini analyzers/scanner when accepting files.

Solution:
Add a version identifier comment at the top of the php.ini file, similar to how many config files include metadata.

; php.ini configuration file
; PHP Version: 8.5.0

[PHP]
; ...

[jordikroon]

I don't see why it would make any difference if this would be added to the source itself. It would require additional maintenance (if hardcoded). On top of that distributions often come with their own default configuration which makes this unreliable.

That said those who install PHP can alter the ini themselves and add this line if they require. Or do php -v or do phpversion().

[bwoebi]

We only provide php.ini-development and php.ini-production. These files are not templated - and we certainly are not going to change the version identifier in these files for every single version.

Further, these files are not installed automatically, but distributions themselves rename these files and put them into locations of their choice.
If anyone has the responsibility to add this to php.ini files, it would be package maintainers, and not the PHP project.