How to get client MAC address by a access on a website?

Question

I have my website, and it records the number of visitors, IP and time of access...

I want to identify each visitor... I think that this was possible recording IP Add

Answer 1

Sorry but sending MAC address isn't part of the HTTP. However, you can use cookie to identify different users. Any backend language will do (add cookie in the server side). You can set the cookie in the client side using JavaScript too.