<?php
$device = '1';
$info= $_SERVER['HTTP_USER_AGENT'];
    if( stristr($info,'ipad') ) || ( stristr($info'],'iphone') ) ||  (  stristr($info'],'blackberry') ) ||  ( stristr($info'],'android') ){
       $device = "0";
       }
if($device=='0'){
//redirect to mobile site
       }
?>