wp-includes/class-wp-locale-switcher.php:245Load translations for a given locale.
$localestring private function load_translations( $locale ) { global $l10n; $domains = $l10n ? array_keys( $l10n ) : array(); load_default_textdomain( $locale ); foreach ( $domains as $domain ) { // The default text domain is handled by `load_default_textdomain()`. if ( 'default' === $domain ) { continue; } /* * Unload current text domain but allow them to be reloaded * after switching back or to another locale. */ unload_textdomain( $domain, true ); get_translations_for_domain( $domain ); } }Introduced in 4.7.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/class-wp-locale-switcher.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.