That's interesting. I have also read that you need to have the subs at the top of the script if you call it with sub()
However I just realized that I always have my subs at the bottom and always call them with sub() without the ampersand. Am I getting lucky? Should I correct my scripts? Paul -----Original Message----- From: John W. Krahn [mailto:[EMAIL PROTECTED] Sent: Tuesday, September 09, 2003 1:53 PM To: [EMAIL PROTECTED] Subject: Re: PERL code execution rule? Rodney Wise wrote: > > I was reviewing my code some more and here is what I think might be > happening. > > In my code, the first thing I do is declare my variables. > > Then I declare my subroutines'. > > It looks like by declaring my subroutines, they are being executed. > ??? > > example of my Subroutine declarations: > > # Get the Data Number > &get_number; > > # Get Form Information > &parse_form; > > These two subroutines do not take any arguments and assign values to > global variables... so it appears that merely "declaring" them in the > beginning of my code is causing them to execute. If this is the case, > do I have to declare subroutines? You are running the subroutines. These are all equivalent (note that the third example only works if the sub has been declared earlier): &get_number; &get_number(); get_number; get_number(); You have to use the 'sub' keyword to declare subroutines. sub get_number; perldoc -f sub However you usually only have to pre-declare subs if you are using prototypes. Please read the perlsub.pod document to find out all about Perl's subroutines. perldoc perlsub John -- use Perl; program fulfillment -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
