Packet of Disconnect PHP

[mark fennema]

Hello, I'm working on getting a hotspot set up, and I need the ability
to have a user log themselves out, so that they can connect on another
computer. I have it set up so that the user can enter their
information and have it log them out, but it doesn't disconnect them
from the router, so they can continue using the internet until they
disconnect from the wireless, so I need to send a packet of
disconnect. Is there a way to do this in php?