mod_perl: "our" vs. "my" in CGI scripts

[Max Kanat-Alexander]

	Hey everybody. Here's another important thing to know for mod_perl. In
a CGI, the following code doesn't work:

	my $var = 0;
	sub foo {print $var;}

	The following code *does* work:

	our $var = 0;
	sub foo {print $var;}

	That's because "my" isn't really supposed to make variables available
to subroutines, but it works normally because of some strangeness in
normal perl.

	If you have an "our" outside of a function, though, you always have to
initialize the variable to something. That is, don't do "our $var",
always do "our $var = 'something'". If you don't have anything to
initialize it to, you can do "local our $var;" -- that works fine.

	-Max
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