|
public detectLocaleFromHttpHeader ( string $acceptLanguageHeader ) : |
||
| $acceptLanguageHeader | string | The Accept-Language HTTP header |
| return | Best-matching existing Locale instance | |
public function detectLocaleFromHttpHeader($acceptLanguageHeader)
{
$acceptableLanguages = I18n\Utility::parseAcceptLanguageHeader($acceptLanguageHeader);
if ($acceptableLanguages === false) {
return $this->localizationService->getConfiguration()->getDefaultLocale();
}
foreach ($acceptableLanguages as $languageIdentifier) {
if ($languageIdentifier === '*') {
return $this->localizationService->getConfiguration()->getDefaultLocale();
}
try {
$locale = new Locale($languageIdentifier);
} catch (Exception\InvalidLocaleIdentifierException $exception) {
continue;
}
$bestMatchingLocale = $this->localeCollection->findBestMatchingLocale($locale);
if ($bestMatchingLocale !== null) {
return $bestMatchingLocale;
}
}
return $this->localizationService->getConfiguration()->getDefaultLocale();
} /**
* @test
* @dataProvider sampleHttpAcceptLanguageHeaders
*/
public function detectingBestMatchingLocaleFromHttpAcceptLanguageHeaderWorksCorrectly($acceptLanguageHeader, $expectedResult)
{
$locale = $this->detector->detectLocaleFromHttpHeader($acceptLanguageHeader);
$this->assertEquals($expectedResult, $locale);
}