PHP服务器端判断手机访问跳转页面

//thinkPHP框架中写在index控制器index的方法前面

public function index(){
        $agent = $this -> check_wap();
        if( $agent )
        {
            header('location: http://demo.com/wap/index/index');
            exit;
        }

}

//判断移动端的方法，写在控制器类后面即可

function check_wap(){
        // 先检查是否为wap代理，准确度高
        if(stristr($_SERVER['HTTP_VIA'],"wap")){
            return true;
        }
        // 检查浏览器是否接受 WML.
        elseif(strpos(strtoupper($_SERVER['HTTP_ACCEPT']),"VND.WAP.WML") > 0){
            return true;
        }
        //检查USER_AGENT
        elseif(preg_match('/(blackberry|configuration\/cldc|hp |hp-|htc |htc_|htc-|iemobile|kindle|midp|mmp|motorola|mobile|nokia|opera mini|opera |Googlebot-Mobile|YahooSeeker\/M1A1-R2D2|android|iphone|ipod|mobi|palm|palmos|pocket|portalmmm|ppc;

|smartphone|sonyericsson|sqh|spv|symbian|treo|up.browser|up.link|

vodafone|windows ce|xda |xda_)/i',

$_SERVER['HTTP_USER_AGENT'])){
            return true;
        }
        else{
            return false;
        }
    }