localize/AcceptLanguage.php at master · redcatphp/localize · GitHub

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<?php
namespaceRedCat\Localize;
useLocale;
class AcceptLanguage{
staticfunctionget($http_accept_language = ''){
if(!$http_accept_language)
$http_accept_language = isset($_SERVER['HTTP_ACCEPT_LANGUAGE']) ? $_SERVER['HTTP_ACCEPT_LANGUAGE'] : '';
$languages = [];
foreach (self::getLanguages($http_accept_language) as$quality_group) {
foreach ($quality_groupas$lang) {
$languages[] = $lang;
 }
 }
return$languages;
	}
staticfunctiondetect(callable$strategy, $default, $http_accept_language = ''){
if (!$http_accept_language)
$http_accept_language = isset($_SERVER['HTTP_ACCEPT_LANGUAGE']) ? $_SERVER['HTTP_ACCEPT_LANGUAGE'] : '';
foreach (self::get($http_accept_language) as$lang) {
$result = $strategy($lang);
if (!empty($result))
return$result;
 }
return$default;
	}
staticfunctiongetLanguages($http_accept_language, $resolution = 100){
$tags = array_filter(array_map('self::parse', explode(',', $http_accept_language)));
$grouped_tags = [];
foreach ($tagsas$tag) {
list($q, $t) = $tag;
$intq = (int)round($q * $resolution, 0, PHP_ROUND_HALF_UP);
if (!isset($grouped_tags[$intq])) {
$grouped_tags[$intq] = [];
 }
$grouped_tags[$intq][] = $t;
 }
krsort($grouped_tags, SORT_NUMERIC);
return$grouped_tags;
	}
staticfunctionparse($locale_str){
$split = array_map('trim', explode(';', $locale_str, 2));
if (!isset($split[0]) || strlen($split[0]) === 0)
return [];
if (strpos($split[0], '*') === 0) {
$lang_tag = str_replace('*', 'xx', $split[0]);
$is_wildcard = true;
 }
else {
$lang_tag = $split[0];
$is_wildcard = false;
 }
$lang_tag = str_replace('-*', '', $lang_tag);
if (isset($split[1]) && strpos($split[1], 'q=') === 0) {
$q = (float)substr($split[1], 2);
if (!is_numeric($q) || $q <= 0 || 1 < $q)
return [];
 }
else{
$q = 1.0;
 }
if(class_exists('Locale'))
$locale = Locale::parseLocale($lang_tag);
else
$locale = self::parseLocale($lang_tag);
if($is_wildcard)
$locale['language'] = '*';
return [$q, $locale];
	}
staticfunctionsort_tags(array$a, array$b){
if($a[0] === $b[0])
return0;
return ($a[0] < $b[0]) ? -1 : 1;
	}
staticfunctionparseLocale($lang_tag){
$x = explode('-',$lang_tag);
$a = [];
foreach($xas$i=>$lg)
$a['variant'.($i?$i:'0')] = $lg;
return$a;
	}
}