apply_filters( 'plugin_locale', string $locale, string $domain )

Filters a plugin’s locale.

Parameters

$locale: (string) The plugin's current locale.
$domain: (string) Text domain. Unique identifier for retrieving translated strings.

Used By	Description
wp-includes/l10n.php: load_plugin_textdomain()	Loads a plugin’s translated strings.
wp-includes/l10n.php: load_muplugin_textdomain()	Load the translated strings for a plugin residing in the mu-plugins directory.

Version	Description
3.0.0	Introduced.

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Licensed under the GNU GPLv2+ License.
https://developer.wordpress.org/reference/hooks/plugin_locale