MAC address in PHP/JavaScript/.NET?

How can I get MAC address with using PHP, JavaScrip开发者_C百科t and .NET ?

MAC Addresses are not sent in HTTP headers... and I can't imagine javascript has access to them. I think you're out of luck... but I could be wrong.

I doubt you really need it.
Because there is no use of MAC addresses over internet, but on LAN only. JS has nothing to do it, but some ActiveScript can get it but it will ask user permission to install and works on IE only

also, anybody CAN change his MAC address. if what you are trying to do is for security purposes forget about it

You would need an HTA - HTml Application or a native windows program: http://www.google.com/search?q=Win32_NetworkAdapterConfiguration+hta

you can't do it with Javascript or php , only with a locally ran application