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!
Locale::acceptFromHttp
locale_accept_from_http
(PHP 5 >= 5.3.0, PHP 7, PHP 8, PECL intl >= 1.0.0)
Locale::acceptFromHttp -- locale_accept_from_http — Devine la meilleure locale à partir de l'en-tête HTTP "Accept-Language"
Description
Style orienté objet
Style procédural
Essaie de trouver une locale qui peut satisfaire la liste de langue qui est
demandée par l'en-tête HTTP "Accept-Language".
Liste de paramètres
-
header -
La chaîne contenant l'en-tête
"Accept-Language", au format de la RFC 2616.
Valeurs de retour
L'identifiant de locale correspondant.
Retourne false quand la longueur de header dépasse
INTL_MAX_LOCALE_LEN.
Exemples
Exemple #1 Exemple avec locale_accept_from_http(), procédural
<?php
$locale = locale_accept_from_http($_SERVER['HTTP_ACCEPT_LANGUAGE']);
echo $locale;
?>Exemple #2 Exemple avec locale_accept_from_http(), POO
<?php
$locale = Locale::acceptFromHttp($_SERVER['HTTP_ACCEPT_LANGUAGE']);
echo $locale;
?>L'exemple ci-dessus va afficher :
en_US
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User Contributed Notes 5 notes
Adam Lange ¶
12 years ago
rasmus at mindplay dot dk ¶
7 years ago
If you're struggling to figure out how to use this function in a project that only supports certain languages, move along.
Unfortunately, this function doesn't let you specify languages supported by your project - and since the internal header parsing and negotiation logic isn't exposed in any other way, you'll most likely want to ditch this function and go for a custom implementation of the same thing:
https://github.com/willdurand/Negotiation
bill at m$ dot com ¶
1 year ago
A nice way to detect humans. Bots usually dont have this HTTP_ACCEPT_LANGUAGE set.
bohwaz ¶
2 years ago
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 ...
mollasadra at g dot com ¶
6 years ago
Didn'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");
zh
