问题描述
<?php
$language = $_SERVER['HTTP_ACCEPT_LANGUAGE'];
echo $language;
?>
当我使用Firefox测试这段代码时，我得到 en- us，en; q = 0.7，ja; q = 0.3 ，
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IE测试代码块时，我得到 zh-cn 。
when I use IE to test the block of code, I get zh-cn.
值是 $ _ SERVER ['HTTP_ACCEPT_LANGUAGE'] 一个字符串？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 $ _ SERVER ['HTTP_ACCEPT_LANGUAGE'] 的值中获取语言？
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']?
推荐答案
是的， $ _ SERVER ['HTTP_ACCEPT_LANGUAGE'] 的值是一个字符串 - 参见。
Yes, the value of $_SERVER['HTTP_ACCEPT_LANGUAGE'] is a string -- see $_SERVER.
其内容由浏览器发送 - 这解释了为什么根据您使用的浏览器得到不同的结果：很可能，您的Firefox配置为请求英文页面（高优先级）或日语（低优先级），而您的IE配置为请求中文页面。
Its content is sent by the browser -- which explains why you get different results depending on the browser you are using : most likely, your Firefox is configured to request pages in english (high priority) or japanese (low priority), while your IE is configured to request pages in chinese.
这是因为HTTP标头可以包含：
This is because that HTTP header can contain :
- 语言列表
- optionnaly，区域代码
- 具有相关优先级。
服务器应该使用语言进行响应ge适合用户要求的最佳。
The idea being that the server should respond, using the language that suits "the best" what's requested by the user.
关于解析该标题，这篇博文可能是一个有趣的读物：
有一部分代码用于解析该HTTP头 - 它会生成一个类似于（引用）的数组：
There is a portion of code proposed to parse that HTTP header -- and it generates an array that looks like this (quoting) :
Array
(
[en-ca] => 1
[en] => 0.8
[en-us] => 0.6
[de-de] => 0.4
[de] => 0.2
)
这是一系列语言，按优先级排序，按降序排列 - - 这可能是你想要的。
Which is an array of languages, sorted by priority, in descending order -- which is probably what you want.
这篇关于如何使用PHP从$ _SERVER ['HTTP_ACCEPT_LANGUAGE']获取语言值？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！