[wp-meta] [Making WordPress.org] #7296: Add PHP files to language packs

[Making WordPress.org]

#7296: Add PHP files to language packs
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 Reporter:  swissspidy                |      Owner:  (none)
     Type:  enhancement               |     Status:  new
 Priority:  normal                    |  Milestone:
Component:  Translate Site & Plugins  |   Keywords:
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 Context:

 The WordPress core performance team is working on a
 [https://wordpress.org/plugins/performant-translations/ Performant
 Translations feature plugin] that uses a new approach to handle
 translation files in WordPress, making localization blazing fast. This
 plugin helps to make localized WordPress sites faster by replacing the
 traditional MO translation files with PHP files, which are much faster to
 parse.

 Learn more at https://make.wordpress.org/core/2023/09/05/call-for-testing-
 performant-translations/

 The goal is to merge this new feature into WordPress 6.5, but nothing is
 set in stone yet. I merely want to get a headstart on making all the infra
 changes.

 Anyway, once that lands, translate.wordpress.org will need to serve PHP
 files as part of language packs.

 -> [https://github.com/GlotPress/GlotPress/pull/1626 Here is the PR adding
 PHP support to GlotPress]

 I do have a patch for the
 `\WordPressdotorg\GlotPress\Customizations\CLI\Language_Pack` class to
 enable this for plugins and themes. But I couldn't find where the language
 packs are generated for core. Any help would be appreciated.

 Another open question is if and how PHP files should be added
 conditionally. If a site is running WordPress 6.0, the language pack
 (either for core or a plugin/theme) shouldn't need to include the PHP
 files. Though it doesn't really hurt either, as the files are rather small
 (smaller than the MO file).

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Ticket URL: <https://meta.trac.wordpress.org/ticket/7296>
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