php根据用户语言跳转相应网页

当来访者浏览器语言是中文就进入中文版面,国外的用户默认浏览器不是中文的就跳转英文页面。 <?php $lan = substr( $HTTP_ACCEPT_LANGUAGE,0,5); if ($lan == "zh-cn") print("<meta http-equiv='refresh' content = '0;URL = gb/index.htm'>"); else print("<meta http-equiv='refresh' content = '0;URL = eng/index.htm'>"); ?> HTML网页根据来访这的浏览