PHP Regular expressions to determine the browser language instance

PHP function instance, based on the regular expression to judge the browser's default language, in fact, PHP Judge browser language using Super global variable _server["http_accept_language"] can be obtained, Then according to the HTTP request Accept-language: header information with a regular match, the final judgment of the language type.

PHP to determine the browser instance function:

01<?php

02$lang=substr ($_server[' http_accept_language '],0,4);

03//only the first 4 digits to determine the most preferred language

04if (Preg_match ("/zh-c/i", $lang))

echo "Simplified Chinese";

06else if (Preg_match ("/zh/i", $lang))

echo "Chinese";

08else if (Preg_match ("/en/i", $lang))

echo "中文版";

10else if (Preg_match ("/fr/i", $lang))

One echo "French";

12else if (Preg_match ("/de/i", $lang))

echo "German";

14else if (Preg_match ("/jp/i", $lang))

echo "Japanese";

16else if (Preg_match ("/ko/i", $lang))

echo "Korean";

18else if (Preg_match ("/es/i", $lang))

echo "Spanish";

20else if (Preg_match ("/sv/i", $lang))

echo "Swedish";

22else

echo $_server["Http_accept_language"];

24?>

This function automatically returns the result of the call when it is used only by calling a function name.