Identify Mobile Device Browsers

So I'm back on this project. Good info - thanks. Quick question though, which would potentially perform better, a switch or match class? I was leaning toward the match class method, but noticed in the examples a switch was used that at least appears efficient.

 

 

So far the strategy worked up by myself and others here is to grab the common standard browsers and send them on their way first, using a class or switch here as well. Then handling the top n known mobiles and sending them to the mobile site via the switch/class. Finally log the user agent of remaining, unidentified clients and redirect them.

 

 

I'm still struggling with a good way to identify these browsers. I'm not sure I quite grasp what I'm looking for in the HTTP::Accept field.