[PROBLEM] Killed sshd, want to start it via PHP script.

Oops, I did it again! Once again, I've managed to kill SSHd on my server. Hurray! >_< What I want to do now, is make a script start it again. I could just reboot the machine the hard way or carry a monitor/keyboard there, but I don't wanna do that at 7am. System: Linux Slackware 8.1 What I have and can access: Apache + PHP 4.3.2 FTP I got into this problem another time, just then the server was in a remote location but I managed to get a friend to drive me there and I started it blindfolded (no monitor, just keyboard). Then I called another friend while I was there to see if it got back up or not. Anyway; I want to make some sort of PHP backdoor to start sshd again. As far as I know, only root can do so though so just an exec() won't do. How can I switch to root, enter the password and then start sshd via a PHP script that I run via the web? I'd appriciate your help. //Simon