Re: Re: Re: Re: Runtime Hash Variable access


go ahead... be a heretic
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Re: Re: Re: Re: Runtime Hash Variable access

by Juerd (Abbot)

on Mar 08, 2004 at 15:04 UTC ( [id://334833]=note: print w/replies, xml )

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in reply to Re: Re: Re: Runtime Hash Variable access
in thread Runtime Hash Variable access

What I was doing in my reply is called a sumbolic reference?

Symbolic, yes.

And that is deprecated?

No, just frowned upon.

I think it's quite a nice way of getting the value of a variable which name you don't yet know.

It's not. It requires global variables, which suck (see Coping with Scoping) and makes debugging hard. Instead, just use a hash (forget for a moment that the stash is a hash, if you knew that). Your code, using a hash and strict, would be:

use strict;

my %hash;
$hash{the_var_i_want} = "this is the actual value I want to get";
my $the_name = <STDIN>; #say, this would be "the_var\n"
chomp $the_name;
print $hash{"${the_name}_i_want"};
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