In PHP 8.4, declaring function or method parameters with a default value of `null` is deprecated if the type is not nullable.
PHP applications are recommended to ''explicitly'' declare the type as nullable. All type declarations that have a default value of `null`, but without declaring `null` in the type declaration, will emit a deprecation notice:
{{{
function test( array $value = null ) {}
}}}
`Deprecated: Implicitly marking parameter $value as nullable is deprecated, the explicit nullable type must be used instead`
**Recommended Changes**
Change the implicit nullable type declaration to a nullable type declaration, available since PHP 7.1:
{{{#!diff
- function test( string $test = null ) {}
+ function test( ?string $test = null ) {}
}}}
This commit updates the affected instances in core to use a nullable type declaration.
References:
* [https://wiki.php.net/rfc/deprecate-implicitly-nullable-types PHP RFC: Deprecate implicitly nullable parameter types]
* [https://php.watch/versions/8.4/implicitly-marking-parameter-type-nullable-deprecated PHP.Watch: PHP 8.4: Implicitly nullable parameter declarations deprecated]
Follow-up to [28731], [50552], [57337], [57985].
Props ayeshrajans, jrf, audrasjb, jorbin.
Fixes#60786.
Built from https://develop.svn.wordpress.org/trunk@58009
git-svn-id: http://core.svn.wordpress.org/trunk@57480 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This introduces a more lightweight library for loading `.mo` translation files which offers increased speed and lower memory usage.
It also supports loading multiple locales at the same time, which makes locale switching faster too.
For plugins interacting with the `$l10n` global variable in core, a shim is added to retain backward compatibility with the existing `pomo` library.
In addition to that, this library supports translations contained in PHP files, avoiding a binary file format and leveraging OPCache if available.
If an `.mo` translation file has a corresponding `.l10n.php` file, the latter will be loaded instead.
This behavior can be adjusted using the new `translation_file_format` and `load_translation_file` filters.
PHP translation files will be typically created by downloading language packs, but can also be generated by plugins.
See https://make.wordpress.org/core/2023/11/08/merging-performant-translations-into-core/ for more context.
Props dd32, swissspidy, flixos90, joemcgill, westonruter, akirk, SergeyBiryukov.
Fixes#59656.
Built from https://develop.svn.wordpress.org/trunk@57337
git-svn-id: http://core.svn.wordpress.org/trunk@56843 1a063a9b-81f0-0310-95a4-ce76da25c4cd
