How to identify the device?

Question

PHP

Hello, I want to make 2 mobile designs on the site and the main one, how can I implement it?
How can you determine what the user is from?

Answer 1

100% - no way, but with a certain accuracy for the headers in the request. There are a lot of ready-made implementations, for different servers, for example:
https://gist.github.com/perusio/1326701
Well, then either a redirect to a subdomain like m.domain.com or some other sign of a variable type and in php already resolve connection of one or another design theme, there are already a lot of options, it depends on the architecture of your application.

Answer 2

Mobile Detect