Re^3: URL Redirect

I am still confused as to what
my ( $NewUrl ) = $res->header('Location');
exactly is.

What exactly is "$res->header('Location')"? Is it a reference pointing to an array inside LWP?

If I wanted to see the whole potato, why does
my @Headres = @$res->header('Location')
not work?

How would I assign the whole potato to @Headers?

I am confused.

Many thanks,
-T

Comment on Re^3: URL Redirect

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Re^4: URL Redirect by Corion (Patriarch) on Sep 07, 2016 at 06:52 UTC
Maybe now is a good time to learn about Perl? See perlsyn for a basic overview of the syntax. `$res->header('Location')` is a call to the `header` method of whatever class `$res` is in. It passes one parameter with the value `Location`. While Perl has sigils and often these can be used in interesting ways, there are some restrictions on their use as you can't make things up and expect Perl to infer what you mean. Putting a `@` before a reference, as in `@$res` tells Perl that you want to treat `$res` as an array. But, as Perl certainly has told you when you tried to run your code, `$res` does not behave like an array reference and hence Perl refused to do what you told it.	[reply] [d/l] [select]

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Re^4: URL Redirect
by Corion (Patriarch) on Sep 07, 2016 at 06:52 UTC

Maybe now is a good time to learn about Perl? See perlsyn for a basic overview of the syntax.

$res->header('Location')

header

$res

Location

While Perl has sigils and often these can be used in interesting ways, there are some restrictions on their use as you can't make things up and expect Perl to infer what you mean. Putting a @ before a reference, as in @$res tells Perl that you want to treat $res as an array. But, as Perl certainly has told you when you tried to run your code, $res does not behave like an array reference and hence Perl refused to do what you told it.

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