function get_data($index, $dataDir, $locale = 'en', $constraint = null)
{
$data = array();
$bundle = load_resource_bundle($locale, $dataDir);
foreach ($bundle->get($index) as $code => $name) {
if (null !== $constraint) {
if ($constraint($code)) {
$data[$code] = $name;
}
continue;
}
$data[$code] = $name;
}
$collator = new \Collator($locale);
$collator->asort($data);
return $data;
}
// Discover the list of locales for which individual language/region names
// exist. This list contains for example "de" and "de_CH", but not "de_DE" which
// is equal to "de"
$translatedLocales = array_unique(array_merge(list_files($langDir, '.res'), list_files($regionDir, '.res')));
sort($translatedLocales);
// For each translated locale, generate a list of locale names
// Each locale name has the form: "Language (Script, Region, Variant1, ...)
// Script, Region and Variants are optional. If none of them is available,
// the braces are not printed.
foreach ($translatedLocales as $translatedLocale) {
// Don't include ICU's root resource bundle
if ($translatedLocale === 'root') {
continue;
}
$langBundle = load_resource_bundle($translatedLocale, $langDir);
$regionBundle = load_resource_bundle($translatedLocale, $regionDir);
$localeNames = array();
foreach ($supportedLocales as $supportedLocale) {
// Don't include ICU's root resource bundle
if ($supportedLocale === 'root') {
continue;
}
$lang = \Locale::getPrimaryLanguage($supportedLocale);
$script = \Locale::getScript($supportedLocale);
$region = \Locale::getRegion($supportedLocale);
$variants = \Locale::getAllVariants($supportedLocale);
// Currently the only available variant is POSIX, which we don't want
// to include in the list
if (count($variants) > 0) {
continue;
}
