title: Nodejs and/or PHP mobile detection
body: <p>Is there a good and reliable library or method, or whatever, that can detect if the request is coming from a mobile environment? </p>
  
  <p>I found a few packages, but non seems to work properly. I am looking for a basic/simple one that is able to detect just this: isMobile; isDesktop. Needs to be reliable, up to date and working. </p>
  
  <p>If there is none free, even payed solutions would be acceptable. I am not looking for 100% detection, but I expect that top most popular devices to be detected without problem. </p>
  
  <p>I am looking for a nodejs (express) solution, and/or a PHP one.</p>