Do you want to preserve the leading 0 in the key? If so then you must quote the string because otherwise Perl will treat the digits as an octal number (as you have already found) and the key will end up as the stringised version of the number. Consider:

use strict;
use warnings;

my %hash;

$hash{01} = 'one';
$hash{07} = 'seven';
$hash{010} = 'eight';
$hash{10} = 'ten';
$hash{'01'} = "'one'";
$hash{'07'} = "'seven'";
$hash{'010'} = "'eight'";
$hash{'10'} = "'ten'";

print "$_ => $hash{$_}\n" for sort keys %hash;

[download]

Prints:

01 => 'one'
010 => 'eight'
07 => 'seven'
1 => one
10 => 'ten'
7 => seven
8 => eight

[download]
True laziness is hard work

In reply to Re: Illegal octal digit error by GrandFather
in thread Illegal octal digit error by lakshmananindia

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