Split the header line into an array before entering the loop, and then use that to build an AoHs: 

use strict;
use warnings;

my $file = "/tmp/index.csv";
open (FL, "< $file");
my @fieldnames = split ';', <FL>; ##
my @data;
while ($line = <FL>){
    my %temp; @temp{ @fieldnames } = split ';', $line;
    push @data, \%temp;
}

## print the 'Forex' field of the 124th line (array runs from 0).
print $data[ 123 ]{ Forex };

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Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
Lingua non convalesco, consenesco et abolesco. -- Rule 1 has a caveat! -- Who broke the cabal?
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.

In reply to Re: Dynamically map the elements of CSV by BrowserUk
in thread Dynamically map the elements of CSV by chanakya

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