如何在php中检测移动浏览器

Question

I tried this code this code to detect the browsers in mobile

<?php
function isMobile() {
    return preg_match("/(android|avantgo|blackberry|bolt|boost|cricket|docomo|fone|hiptop|mini|mobi|palm|phone|pie|tablet|up\.browser|up\.link|webos|wos)/i", $_SERVER["HTTP_USER_AGENT"]);
}
// If the user is on a mobile device, redirect them
if(isMobile())
{

  echo 'mobile';
}
else
{
    echo 'desktop';
}
?>

But it is not detecting the mobile browsers, can any one tell me how to fix this issue

Answer 1

http://detectmobilebrowsers.com/也可以很好地工作-或Adam的建议也很好。