interface ResourceBundleInterface Gives access to ICU data. Methods

string|null getLanguageName(string $language, string|null $region = null, string $displayLocale = null)

class BundleCompiler implements

string getSourceDir() Returns the directory where the source versions of the resource bundles

string[] getLocales() Returns the list of locales that this bundle supports.

string|null getCurrencySymbol(string $currency, string $displayLocale = null) Returns the symbol