PHP fork without having child inherit the parent's file descriptors?

Question

I'm trying to run a shell command using the backtick operators, but the fact that the child process inherits php's open file descriptors is problematic. Is there a way to keep this from happening?

I'm running PHP 5.1.2

Answer 1

The only way I really know of is to have the children open up their own resources after forking.

There is a fairly decent tutorial on pcntl here:

http://hudzilla.org/phpwiki/index.php?title=Miscellaneous_topics

http://hudzilla.org/phpwiki/index.php?title=Duplication_of_resources_when_forking