function autoLocale($headerLocale)
{
// Default if browser does not send HTTP_ACCEPT_LANGUAGE
- $attempts = array('en_US', 'en_US.utf8', 'en_US.UTF-8');
- if (isset($headerLocale)) {
- // (It's a bit crude, but it works very well. Preferred language is always presented first.)
- if (preg_match('/([a-z]{2,3})[-_]?([a-z]{2})?/i', $headerLocale, $matches)) {
- $first = [strtolower($matches[1]), strtoupper($matches[1])];
- $separators = ['_', '-'];
- $encodings = ['utf8', 'UTF-8'];
- if (!empty($matches[2])) {
- $second = [strtoupper($matches[2]), strtolower($matches[2])];
- $attempts = cartesian_product_generator([$first, $separators, $second, ['.'], $encodings]);
- } else {
- $attempts = cartesian_product_generator([$first, $separators, $first, ['.'], $encodings]);
+ $locales = array('en_US', 'en_US.utf8', 'en_US.UTF-8');
+ if (! empty($headerLocale)) {
+ if (preg_match_all('/([a-z]{2,3})[-_]?([a-z]{2})?,?/i', $headerLocale, $matches, PREG_SET_ORDER)) {
+ $attempts = [];
+ foreach ($matches as $match) {
+ $first = [strtolower($match[1]), strtoupper($match[1])];
+ $separators = ['_', '-'];
+ $encodings = ['utf8', 'UTF-8'];
+ if (!empty($match[2])) {
+ $second = [strtoupper($match[2]), strtolower($match[2])];
+ $items = [$first, $separators, $second, ['.'], $encodings];
+ } else {
+ $items = [$first, $separators, $first, ['.'], $encodings];
+ }
+ $attempts = array_merge($attempts, iterator_to_array(cartesian_product_generator($items)));
+ }
+
+ if (! empty($attempts)) {
+ $locales = array_merge(array_map('implode', $attempts), $locales);
}
}
}
- setlocale(LC_ALL, implode('implode', iterator_to_array($attempts)));
+
+ setlocale(LC_ALL, $locales);
}
/**