$svr=strtolower($_SERVER["SERVER_NAME"]); function rewrite($uKey,$u){ global $svr; //这是引入全局变量,有这个才可使用函数外面的变量 if (false!==strpos($svr,$uKey)){ //当前主机名(域名)含有urlKey关键字,则跳转到网址u header("Location: ".$u); exit(); }else{} } /*--------------多域名解析,URL跳转------------*/ //rewrite("yiliaobang","http://www.az16.com/yiliaobang/"); rewrite("leicui.","http://www.543yy.com/zhaoguanxi/leicui.asp"); //header("Status: 404 Not Found"); ?>