Get Specific Device Information

Question

Using just PHP, is there anyway to detect if the page is being loaded from a SPECIFIC device? Say, I would want the page to react differently if only MY iPhone was loading t

Answer 1

Only if that device sends such information.

You could use a cookie - have a setup page that requires you to log in, then send the cookie to the device. From then onward your device will send the cookie to other pages without needing to log in again.

By default devices do not send serial numbers or any other means of specifically identifying a device, probably because this would break some privacy rules.