如何使用 PHP 从 $_SERVER['HTTP_ACCEPT_LANGUAGE'] 获取语言值？
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How to get the language value from $_SERVER['HTTP_ACCEPT_LANGUAGE'] using PHP?
提问by Steven
<?php
$language = $_SERVER['HTTP_ACCEPT_LANGUAGE'];
echo $language;
?>
When I use Firefox to test this block of code, I get en-us,en;q=0.7,ja;q=0.3,
当我使用 Firefox 来测试这段代码时，我得到en-us,en;q=0.7,ja;q=0.3，
when I use IE to test the block of code, I get zh-cn.
当我使用 IE 测试代码块时，我得到zh-cn.
Is the value of $_SERVER['HTTP_ACCEPT_LANGUAGE']a string? How to determine whether the preferred language is Chinese or Japanese? How can I write a regular expression to get the language from the value of $_SERVER['HTTP_ACCEPT_LANGUAGE']?
是$_SERVER['HTTP_ACCEPT_LANGUAGE']字符串的值吗？如何确定首选语言是中文还是日文？如何编写正则表达式以从 的值中获取语言$_SERVER['HTTP_ACCEPT_LANGUAGE']？
回答by Pascal MARTIN
Yes, the value of $_SERVER['HTTP_ACCEPT_LANGUAGE']is a string -- see $_SERVER.
是的， 的值$_SERVER['HTTP_ACCEPT_LANGUAGE']是一个字符串——参见$_SERVER。
Its content is sent by the browser -- which explains why you get different results depending on the browser you are using : most likely, your Firefox is configured to request pages in english (high priority)or japanese (low priority), while your IE is configured to request pages in chinese.
它的内容是由浏览器发送的——这解释了为什么根据您使用的浏览器会得到不同的结果：最有可能的是，您的 Firefox 被配置为以英语（高优先级）或日语（低优先级）请求页面，而您的 IE配置为请求中文页面。
This is because that HTTP header can contain :
这是因为该 HTTP 标头可以包含：
- a list of languages
- optionnaly, with region codes
- with associated priorities.
- 语言列表
- 可选，带有区域代码
- 与相关的优先级。
The idea being that the server should respond, using the language that suits "the best" what's requested by the user.
这个想法是服务器应该使用适合用户请求的“最佳”语言来响应。
About parsing that header, this blog-post might be a interesting read : Parse Accept-Language to detect a user's language
关于解析该标题，这篇博文可能是一篇有趣的文章：解析接受语言以检测用户的语言
There is a portion of code proposed to parse that HTTP header -- and it generates an array that looks like this (quoting):
有一部分代码建议解析该 HTTP 标头 - 它生成一个如下所示的数组（引用）：
Array
(
[en-ca] => 1
[en] => 0.8
[en-us] => 0.6
[de-de] => 0.4
[de] => 0.2
)
Which is an array of languages, sorted by priority, in descending order -- which is probably what you want.
这是一组按优先级排序的语言，按降序排列 - 这可能是您想要的。
回答by feeela
As of v5.3 PHP has function for that purpose:
从 v5.3 开始，PHP 具有用于此目的的功能：
$locale = locale_accept_from_http($_SERVER['HTTP_ACCEPT_LANGUAGE']);
回答by nathanlrf
I just use
explode(",",$_SERVER['HTTP_ACCEPT_LANGUAGE'])to get the first possible language that my client might use. It works fine on chrome and IE 10. Not sure if it would be wrong on other browsers.
我只是
explode(",",$_SERVER['HTTP_ACCEPT_LANGUAGE'])用来获取我的客户可能使用的第一种可能的语言。它在 chrome 和 IE 10 上运行良好。不确定在其他浏览器上是否会出错。
回答by Grringo
try this:
尝试这个：
function getUserBaseLanguage() {
global $_SERVER;
$accept_languages = $_SERVER['HTTP_ACCEPT_LANGUAGE'];
$accept_languages_arr = explode(",",$accept_languages);
foreach($accept_languages_arr as $accept_language) {
preg_match ("/^(([a-zA-Z]+)(-([a-zA-Z]+)){0,1})(;q=([0-9.]+)){0,1}/" , $accept_language, $matches );
if (!$matches[6]) $matches[6]=1;
$result[$matches[1]] = array(
'lng_base' => $matches[2],
'lng_ext' => $matches[4],
'lng' => $matches[1],
'priority' => $matches[6],
'_str' => $accept_language,
);
}
return $result;
}
print_r(getUserBaseLanguage());
output:
输出：
Array
(
[pl] => Array
(
[lng_base] => pl
[lng_ext] =>
[lng] => pl
[priority] => 1
[_str] => pl
)
[en-US] => Array
(
[lng_base] => en
[lng_ext] => US
[lng] => en-US
[priority] => 0.7
[_str] => en-US;q=0.7
)
[en] => Array
(
[lng_base] => en
[lng_ext] =>
[lng] => en
[priority] => 0.3
[_str] => en;q=0.3
)
)
