Creo que esto te podria servir para detectar el dispositivo :
Código PHP:
Ver original<?php
$tablet_browser = 0;
$mobile_browser = 0;
$body_class = 'desktop';
if (preg_match('/(tablet|ipad|playbook)|(android(?!.*(mobi|opera mini)))/i', strtolower($_SERVER['HTTP_USER_AGENT']))) { $tablet_browser++;
$body_class = "tablet";
}
if (preg_match('/(up.browser|up.link|mmp|symbian|smartphone|midp|wap|phone|android|iemobile)/i', strtolower($_SERVER['HTTP_USER_AGENT']))) { $mobile_browser++;
$body_class = "mobile";
}
if ((strpos(strtolower($_SERVER['HTTP_ACCEPT']),'application/vnd.wap.xhtml+xml') > 0) or
((isset($_SERVER['HTTP_X_WAP_PROFILE']) or
isset($_SERVER['HTTP_PROFILE'])))) { $mobile_browser++;
$body_class = "mobile";
}
'w3c ','acs-','alav','alca','amoi','audi','avan','benq','bird','blac',
'blaz','brew','cell','cldc','cmd-','dang','doco','eric','hipt','inno',
'ipaq','java','jigs','kddi','keji','leno','lg-c','lg-d','lg-g','lge-',
'maui','maxo','midp','mits','mmef','mobi','mot-','moto','mwbp','nec-',
'newt','noki','palm','pana','pant','phil','play','port','prox',
'qwap','sage','sams','sany','sch-','sec-','send','seri','sgh-','shar',
'sie-','siem','smal','smar','sony','sph-','symb','t-mo','teli','tim-',
'tosh','tsm-','upg1','upsi','vk-v','voda','wap-','wapa','wapi','wapp',
'wapr','webc','winw','winw','xda ','xda-');
if (in_array($mobile_ua,$mobile_agents)) { $mobile_browser++;
}
$mobile_browser++;
//Check for tablets on opera mini alternative headers
$stock_ua = strtolower(isset($_SERVER['HTTP_X_OPERAMINI_PHONE_UA'])?
$_SERVER['HTTP_X_OPERAMINI_PHONE_UA']:(isset($_SERVER['HTTP_DEVICE_STOCK_UA'])?
$_SERVER['HTTP_DEVICE_STOCK_UA']:'')); if (preg_match('/(tablet|ipad|playbook)|(android(?!.*mobile))/i', $stock_ua)) { $tablet_browser++;
}
}
if ($tablet_browser > 0) {
// Si es tablet has lo que necesites
print 'es tablet';
}
else if ($mobile_browser > 0) {
// Si es dispositivo mobil has lo que necesites
print 'es un mobil';
}
else {
// Si es ordenador de escritorio has lo que necesites
print 'es un ordenador de escritorio';
}
?>
Saludos