Mobile, PC-side identification

1, the client or server-side identification

Client-side recognition must be downloaded first, and then accessed once more by the server

Therefore, the major sites are server-side identification, directly return to redirect the address, such as mobile phone access to Baidu. COM returns m.baidu.com

2, client identification is also useful

Some framework code should be identified if the browser needs to be differentiated

3, browser and ordinary mobile browser recognition

Server-Side identification

Client identification

Mobile, PC-side identification