Time!

[doltmann]

How would I go about writing a PHP script that will check the time on one server and then set the time that is returned on the server that the script is running on?😕

Thanks,
Derrick

[devinemke]

as far as I know PHP cannot set the BIOS clock on a machine. that could actually pose a big security threat.

[drawmack]

sure it can, you just use system.

http://us2.php.net/system

How to accomplish this task,

hmmm,

I would say that you would open a socket to the other machine and execute a php script on that machine which returned the local time stamp.

Then use system to set the server time on the local machine to the timestamp returned from the other machine.

I've never played with sockets so I can't help with the actual code though.

[Weedpacket]

You might also be interested in being serious about clock synchronisation and use the Network Time Protocol; then getting the time from the other server is a matter of connecting and listening to port 123 (there is a possibility that the other server is already running this); you could of course then have the alternative of using a public time signal server to synchronise both machines independently.

After that it's just a matter of working out the system call needed to set the local machine's clock.