Huh?!? I don't have time to read your code carefully now, but I'm not really sure you're under strict, although you do use my. OTOH there are long, too long IMHO, lists of "non my'ed" vars and all in all I find it hardly readable.

So, if you're not under strict (and warnings), please do!!

Said this, judging from your subject & description, as of the queek peek I gave into it, the obvious, mandatory quick answer would be: hashes. Since I don't seem to see any in your code chances are that it could be the correct one.

Check perldata for more info.

Update(taking into account your {reply,remark}): 

open PAGE, "$website" or die "Cant open $website: $!";
flock (PAGE, 1) or die "Can't lock website file for reading";

[download]
The usual recommendation about three arga form of open and lexical FHs apply. Also, always include $! in {error,warning} messages about failed system calls. 
while (my $line = (<PAGE>))  {
($Prop,$colour,$txtcol,$url360,$user,$your_name,$address,$town,$zip_co
+de,$country,$email,$telephone_no,$telephone_no2,$theme,$web_address,$
+ppemail,undef,undef,undef) = split "\t", $line;
#create array of users and hash of data
    $onprop{$Prop} = [$Prop,$colour,$txtcol,$url360,$user,$your_name,$
+address,$town,$zip_code,$country,$email,$telephone_no,$telephone_no2,
+$theme,$web_address,$ppemail];
    push (@dataarray, $user);
}

[download]
Commented this here. 
while (<@dataarray>) {

[download]
Huh?!? This works, if it does work, by accident, only because probably glob doesn't do anything on those items... 
        unless (! $item) {

[download]
How 'bout 
        if ($item) { ...

[download]
And it's largely a matter of personal preferences, but how 'bout 
        next unless $item;

[download]
instead?

And so on...

In reply to Re: grouping lines of data together for later use by blazar
in thread grouping lines of data together for later use by jonnyfolk

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.