/**
* @dataProvider dataProviderFor_detect
*/
public function test_detect($accept_language, $default, $expected)
{
$known_languages = ['ja', 'en', 'es', 'ko'];
$strategy = function (array $locale) use($known_languages) {
$is_wildcard = isset($locale['language']) && $locale['language'] === '*';
if (empty($locale['language']) && !$is_wildcard) {
return null;
}
if ($is_wildcard || $locale['language'] === 'zh') {
if (!empty($locale['region']) && $locale['region'] == 'TW') {
return 'zh_tw';
}
if (!empty($locale['script']) && $locale['script'] == 'Hant') {
return 'zh_tw';
}
if ($locale['language'] === 'zh') {
return 'zh_cn';
}
}
if (in_array($locale['language'], $known_languages)) {
return $locale['language'];
}
return null;
};
$actual = AcceptLanguage::detect($strategy, $default, $accept_language);
$this->assertEquals($expected, $actual);
}
/**
* Detect a user's languages and order them by priority.
*
* @param Language $language
* @param AcceptLanguage $acceptLanguage
*
* @return bool
*/
public static function detect(Language $language, AcceptLanguage $acceptLanguage)
{
$acceptLanguageString = $acceptLanguage->getAcceptLanguageString();
$languages = array();
$language->setLanguages($languages);
if (!empty($acceptLanguageString)) {
$httpLanguages = preg_split('/q=([\\d\\.]*)/', $acceptLanguageString, -1, PREG_SPLIT_NO_EMPTY | PREG_SPLIT_DELIM_CAPTURE);
$key = 0;
foreach (array_reverse($httpLanguages) as $value) {
$value = trim($value, ',; .');
if (is_numeric($value)) {
$key = $value;
} else {
$languages[$key] = explode(',', $value);
}
}
krsort($languages);
foreach ($languages as $value) {
$language->setLanguages(array_merge($language->getLanguages(), $value));
}
}
}
function byAcceptLanguage($_map = [], $default = 'en', $url = null, $http_accept_language = '')
{
if (!isset($url)) {
$url = isset($_SERVER['PATH_INFO']) ? $_SERVER['PATH_INFO'] : '';
}
if (isset($_COOKIE['language']) || trim($url, '/')) {
return;
}
$map = [];
foreach ($_map as $k => $v) {
if (is_integer($k)) {
$map[$v] = $this->getSubdomainHref($v);
} else {
$map[$k] = $v;
}
}
if ($default) {
if (is_array($default)) {
$defaultUrl = $default[1];
$default = $default[0];
$map[$default] = $defaultUrl;
} else {
$map[$default] = $this->getSubdomainHref();
}
}
$language = $default;
$redirect = AcceptLanguage::detect(function ($lang) use(&$map, &$language) {
$k = implode('_', $lang);
if (isset($map[$k])) {
$language = $k;
return $map[$k];
}
}, $default, $http_accept_language);
$lg = $this->getSubdomainLang();
$domain = $this->getServerHref();
if ($lg) {
$domain = substr($domain, strlen($lg) + 1);
}
setcookie('language', $language, 0, '/', $domain);
$current = $this->getBaseHref();
if ($current != $redirect) {
header('Location: ' . $redirect, false, 302);
exit;
}
}
