Export PHP files

[swissspidy]

Issue Overview

The WordPress core performance team is working on the Performant Translations feature project, which aims to speed up translations by using PHP files instead of MO files. The goal is to get it ready for WordPress 6.5.

See:

• https://make.wordpress.org/core/2023/09/05/call-for-testing-performant-translations/
• https://wordpress.org/plugins/performant-translations/
• https://github.com/swissspidy/performant-translations
• https://github.com/WordPress/wordpress-develop/pull/5306
• https://github.com/GlotPress/GlotPress/pull/1626

Once that happens, Traduttore should provide those PHP files as well. This is currently blocked by the GlotPress PR, but to make migration easier, Traduttore could include a compat shim for people running GlotPress < 4.0

[swissspidy]

Note: this new format is now available in GlotPress 4.0 and WordPress 6.5+ will use it if it's available.