rotate based on user agent

<?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 || $berry == true)
{
	print "<iframe id=\"player\" width=\"425\" height=\"350\" src=\"http://www.youtube.com/embed/$youtube\" frameborder=\"0\"></iframe>";
 }
else
{
	print "<iframe id=\"player\" width=\"425\" height=\"350\" src=\"http://www.youtube.com/embed/zyE3ODy-tsk\" frameborder=\"0\"></iframe>";
 }
?>