mobile / not mobile detection via useragent

gistfile1.txt

A lightweight mobile / not mobile detection.

Strings required to be recognized as mobile:

Mobi|Mini|Netfront|MOT|Maemo|Iris|Symbian|Fennec|Blazer|BOLT|GoBrowser|SEMC-Browser|Skyfire|TeaShark|Brew|uZard|Maemo|AvantGo|CHTML|PDA|MIDP|PPC|Smartphone|WebOS|PSP

Strings required to be recognized as tablet, when mobile:
iPad|Tablet|Kindle|tablet

Possible problems:

Kindle (right now, only Kindle Tablets?)

Example PHP for detecting mobile only, not tablet:
$useragent = $_SERVER['HTTP_USER_AGENT'];
$ismobile = (preg_match('/(Mobi|Mini|Netfront|MOT|Maemo|Iris|Symbian|Fennec|Blazer|BOLT|GoBrowser|SEMC-Browser|Skyfire|TeaShark|Brew|uZard|Maemo|AvantGo|CHTML|PDA|MIDP|PPC|Smartphone|WebOS|PSP)', $useragent) === 1 && preg_match('/(iPad|Tablet|Kindle)/i', $useragent) === 0);

User Agent Strings from:
http://www.useragentstring.com/pages/Mobile%20Browserlist/
http://www.zytrax.com/tech/web/mobile_ids.html

thanks to @fhemberger