simple redirection for mobile device using php

Question

I need a simple redirection for mobile user for website
when user checks website using mobile automatically it should redirect to another webpage

will this work ????

<script type="text/javascript">
<!--
if (screen.width <= 800) {
 window.location = "http://m.domain.com";
}
//-->
</script> 

i need a simple script to redirect mobile user BECAUSE some say we need to use .htaccess file

• and i don't have any basic knowledge about .htaccess

Answer 1

You can use something like this:

<?php
$iphone = strpos($_SERVER['HTTP_USER_AGENT'],"iPhone");
$android = strpos($_SERVER['HTTP_USER_AGENT'],"Android");
$palmpre = strpos($_SERVER['HTTP_USER_AGENT'],"webOS");
$berry = strpos($_SERVER['HTTP_USER_AGENT'],"BlackBerry");
$ipod = strpos($_SERVER['HTTP_USER_AGENT'],"iPod");

if ($iphone || $android || $palmpre || $ipod || $berry == true) 
{ 
header('Location: http://mobile.site.com/');
}
?>

OR this PHP class: https://github.com/serbanghita/Mobile-Detect