Puppet users - Sep 2012 - variable usage in a string, scenario dependent?

Possibly stupid question - how do I know when I have to use a variable
in a string like this - "${apache::params::moddir}/php.conf" - or when
it''s safe to just do it like this -
"$apache::params::moddir/php.conf". It seems like sometimes I need to
do the former, and other times the latter.

I don''t really have any prior programming knowledge - I feel like this
would be obvious if I did. :-(

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It turns out that you do always need the {}, and this just works because 
the / in the path breaks the variable-finding regex.

Thanks to rodjek on irc! :-D

On Saturday, September 22, 2012 3:15:07 PM UTC-4, Zachary Alex Stern
wrote:
>
> Possibly stupid question - how do I know when I have to use a variable 
> in a string like this - "${apache::params::moddir}/php.conf" - or
when
> it''s safe to just do it like this - 
> "$apache::params::moddir/php.conf". It seems like sometimes I
need to
> do the former, and other times the latter. 
>
> I don''t really have any prior programming knowledge - I feel like
this
> would be obvious if I did. :-( 
>
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