shell_exec() and exec() functions

[Anon]

This is not exactly about php, but I would
like to know if there is a function like one
of the above, or if there is a way that I could use one of the above functions but not give the ability for anyone with ps -ef to see the commands being executed. The system it is running on is solaris 8 and I want to know this because I don't want any user to see the shell arguments being passed to certain scripts. Any Ideas?

[Anon]

Look into using safe mode, so you can control what binaries the users have access to..

http://www.php.net/manual/html/configuration.html

see the safe mode section of the above

Good luck!