[php-src] Issue #23964: ResourceBundle::create('nb', null, false) breaks nb formatting for the rest of the process

Issue: https://github.com/php/php-src/issues/23964 Author: tomsommer ### Description The following code: ```php <?php ResourceBundle::create('nb', null, false); echo (new NumberFormatter('nb', NumberFormatter::DECIMAL))->format(200000), "\n"; echo (new NumberFormatter('nb_NO', NumberFormatter::CURRENCY))->formatCurrency(1234.5, 'NOK'), "\n"; echo (new IntlDateFormatter('nb', IntlDateFormatter::LONG, IntlDateFormatter::NONE, 'UTC'))->format(0), "\n"; ``` Resulted in this output: ``` 200,000 kr 1,234.50 1970 M01 1 ``` But I expected this output instead: ``` 200 000 1 234,50 kr 1. januar 1970 ``` That's what you get without the ResourceBundle::create() line, or with $fallback = true. da isn't affected, so I assume it's because nb is an alias locale in ICU. Once it has happened, every nb formatter in the process is broken, so in php-fpm it lasts until the worker is recycled. It only happens if the bundle is opened before anything else in the process has used nb. $fallback = false maps to ures_openDirect(), so this may well be ICU caching a bad entry and not something PHP can fix. Reporting it here first, since from PHP it's just a call to a documented function. We ran into it through brick/money, which uses this call to validate locales: https://github.com/brick/money/issues/134 ICU 74.2 (libicu74-74.2-1.el9.remi). ### PHP Version ``` PHP 8.5.11 (cli) (built: Sep 22 2026 13:32:06) (NTS gcc x86_64) Copyright (c) The PHP Group Built by Remi's RPM repository <https://rpms.remirepo.net/> #StandWithUkraine #NoAI Zend Engine v4.5.11, Copyright (c) Zend Technologies with Zend OPcache v8.5.11, Copyright (c), by Zend Technologies ``` ### Operating System AlmaLinux 9.8