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_httpTries to find out best available locale based on HTTP "Accept-Language" header

说明

面向对象风格

public static Locale::acceptFromHttp(string $header): string|false

过程化风格

locale_accept_from_http(string $header): string|false

Tries to find locale that can satisfy the language list that is requested by the HTTP "Accept-Language" header.

参数

header

The string containing the "Accept-Language" header according to format in RFC 2616.

返回值

The corresponding locale identifier.

Returns false when the length of header exceeds INTL_MAX_LOCALE_LEN.

范例

示例 #1 locale_accept_from_http() example

<?php
$locale 
locale_accept_from_http($_SERVER['HTTP_ACCEPT_LANGUAGE']);
echo 
$locale;
?>

示例 #2 OO example

<?php
$locale 
Locale::acceptFromHttp($_SERVER['HTTP_ACCEPT_LANGUAGE']);
echo 
$locale;
?>

以上例程会输出:

en_US

参见

  • locale_lookup() - Searches the language tag list for the best match to the language

add a note

User Contributed Notes 4 notes

up
42
Adam Lange
9 years ago
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!
up
10
rasmus at mindplay dot dk
4 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
up
0
bohwaz
6 months 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 ...
up
1
mollasadra at g dot com
4 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
To Top