Do you really need to split the paragraph into lines? You can match a multiline string against a regex, too:

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

$/ = "\n\n";

while (<>) {
    my @result;
    if (     /objectClass:\s+account/
         and /objectClass:\s+ifastUser/
         and my ($prods) = /ifastProducts:\s+(.+?)\s*$/mg # The /m is 
+important here.
         and my ($user)  = /dn: uid=(\w+?),./g) {
        push @result, $prods, $user;
        print join '|', @result;
        print "\n";
    }
}
[download]

But if you need the array, you can have it. The , $_) part of your code does nothing, so remove it. Here is my attempt to do what you need:

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

$/ = "\n\n";

while (<>) {
    my @result;
    my @lines = split /\n/;
    if ( (    grep  /objectClass:\s+account/,                  @lines)
         and (grep  /objectClass:\s+ifastUser/,                @lines)
         and (my ($prods) = map /ifastProducts:\s+(.+?)\s*$/g, @lines)
         and (my ($user)  = map /dn: uid=(\w+?),.+/g,          @lines 
+)) {
        push @result, $prods, $user;
        print join '|', @result;
        print "\n";
    }
}
[download]

---

---

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! —

• How do I compose an effective node title?
• How do I post a question effectively?
• Markup in the Monastery

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:
	&		&
	<		&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.