就像Mikko所写的那样，没有简单的方法来检测移动设备.

Like Mikko wrote, no simple ways to detect mobile.

但是您可以尝试: http://code.google.com/p/php-mobile-detect/

和以前的答案类似: http://detectmobilebrowsers.com/

And something like previous answer: http://detectmobilebrowsers.com/