It's good to mention that if user browser will not send HTTP_ACCEPT_LANGUAGE, the output from:
Locale::acceptFromHttp($_SERVER['HTTP_ACCEPT_LANGUAGE']);
Will be null.
So remember to set up a fail over scenario!
(PHP 5 >= 5.3.0, PHP 7, PHP 8, PECL intl >= 1.0.0)
Locale::acceptFromHttp -- locale_accept_from_http — Попытаться определить наилучшую локаль основываясь на заголовке HTTP "Accept-Language"
Объектно-ориентированный стиль
Процедурный стиль
Пытается определить локаль, удовлетворяющую списку языков, запрошенному в HTTP-заголовке "Accept-Language".
headerСтрока, содержащая заголовок "Accept-Language" в соответствии с форматом RFC 2616.
Соответствующий идентификатор локали.
Возвращает false, если длина header превышает INTL_MAX_LOCALE_LEN.
Пример #1 Пример использования locale_accept_from_http()
<?php
$locale = locale_accept_from_http($_SERVER['HTTP_ACCEPT_LANGUAGE']);
echo $locale;
?>Пример #2 Пример использования в объектно-ориентированном стиле
<?php
$locale = Locale::acceptFromHttp($_SERVER['HTTP_ACCEPT_LANGUAGE']);
echo $locale;
?>Результат выполнения приведённого примера:
en_US
It's good to mention that if user browser will not send HTTP_ACCEPT_LANGUAGE, the output from:
Locale::acceptFromHttp($_SERVER['HTTP_ACCEPT_LANGUAGE']);
Will be null.
So remember to set up a fail over scenario!If you're struggling to figure out how to use this function in a project that only supports certain languages, move along.
Unfortunately, this function doesn't let you specify languages supported by your project - and since the internal header parsing and negotiation logic isn't exposed in any other way, you'll most likely want to ditch this function and go for a custom implementation of the same thing:
https://github.com/willdurand/NegotiationDidn't see this being documented anywhere and the bug hasn't been addressed yet, so to save headache for otherS, this method does a little weird thing with these different locales:
php > echo locale_accept_from_http("zh_TW");
zh
php > echo locale_accept_from_http("zh_CN");
zhA nice way to detect humans. Bots usually dont have this HTTP_ACCEPT_LANGUAGE set.Please note that this method can throw IntlException in some cases when the passed header string is invalid AND you have enabled exceptions. For example:
<?php
ini_set('intl.use_exceptions', 1);
$header = 'fr-FR,fr;q=0.9,fr;q=0.9;q=0.8,en-gb;q=0.8;q=0.7,en;q=0.6,en;q=0.7;q=0.5,*;q=0.5;q=0.4';
var_dump(locale_accept_from_http($header));
?>
Returns:
PHP Warning: Uncaught IntlException: locale_accept_from_http: failed to find acceptable locale in ...