自动识别浏览器语言进行中英文切换(php与Js版)

<?php  
    error_reporting(E_ALL ^ E_NOTICE);  
    // 分析 HTTP_ACCEPT_LANGUAGE 的属性  
    // 这里只取第一语言设置 （其他可根据需要增强功能）  
    //搜索整理 www.jb200.com
    preg_match('/^([a-z-]+)/i', $_SERVER['HTTP_ACCEPT_LANGUAGE'], $matches);  
    $lang = $matches[1];  
    switch ($lang) {  
            case 'zh-cn' :  
                     header('Location: http://cn.jb200.com/');  
                    break;  
            case 'zh-tw' :  
                     header('Location: http://tw.jb200.com/');  
                    break;  
            case 'ko' :  
                     header('Location: http://ko.jb200.com/');  
                    break;  
            default:  
                     header('Location: http://en.jb200.com/');  
                    break;  
    }  
?> 

<SCRIPT LANGUAGE="javascript1.2">
<!--//
if (navigator.appName == ''Netscape'')
var language = navigator.language;
else
var language = navigator.browserLanguage;
if (language.indexOf(''en'') > -1) document.location.href = ''english.htm'';
else if (language.indexOf(''zh'') > -1) document.location.href = ''chinese.htm'';
else
document.location.href = ''english.htm'';
// End -->
</script>