PerlingTheUK,
So I am asking for someplace or explanation why this happens.

This doesn't happen. If you are seeing it then it is something you are doing wrong in your code. Run my sample script and see for yourself: 

#!/usr/bin/perl
use strict;
use warnings;

while ( <DATA> ) {
    chomp;
    print format_it( split " " , $_ ), "\n";
}

sub format_it {
    my $formatted;
    for ( @_ ) {
        $formatted .= length $_ == 1 ? '0' . $_ : $_;
    }
    return $formatted;
}

__DATA__
3 2 61
13
333
5
7
8

[download]

Cheers - L~R

In reply to Re^5: scalar number with preceding 0. by Limbic~Region
in thread scalar number with preceding 0. by PerlingTheUK

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