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filter is not described

plugin_locale filter-hook . WC 1.0

Load Localisation files.

Note: the first-loaded translation file overrides any following ones if the same translation is present.

Locales found in:

- WP_LANG_DIR/woocommerce/woocommerce-LOCALE.mo
- WP_LANG_DIR/plugins/woocommerce-LOCALE.mo


add_filter( 'plugin_locale', 'filter_function_name_6554', 10, 2 );
function filter_function_name_6554( $locale, $string ){
	// filter...

	return $locale;

Where the hook is called

woocommerce/includes/class-woocommerce.php 612
$locale = apply_filters( 'plugin_locale', $locale, 'woocommerce' );

Where in WP core the hook is used WooCommerce

woocommerce/includes/wc-core-functions.php 2143
add_filter( 'plugin_locale', 'get_locale' );
woocommerce/includes/wc-core-functions.php 2160
remove_filter( 'plugin_locale', 'get_locale' );