63.mobile and system

<?php
$useragent=$_SERVER['HTTP_USER_AGENT'];

$iPod = stripos($_SERVER['HTTP_USER_AGENT'],"iPod");
$iPhone = stripos($_SERVER['HTTP_USER_AGENT'],"iPhone");
$iPad = stripos($_SERVER['HTTP_USER_AGENT'],"iPad");
$Android = stripos($_SERVER['HTTP_USER_AGENT'],"Android");
$webOS = stripos($_SERVER['HTTP_USER_AGENT'],"webOS");
if( $iPod || $iPhone || $iPad || $Android) {
 $dev_type= 1; // mobile

}
else{

 $dev_type= 2; // system
}

?>