I think it would make your life easier if you would massage your date into a more appropriate form on the Perl side, instead of fighting with slices of linear arrays within the template.

Here's a simplified example showing a possible data structure: 

#!/usr/bin/perl -w
use strict;
use Template;

my $templ = q{
<table>
  <tr>
    <td>date</td>
    [% FOREACH realname IN Users %]
    <td>[% realname %]</td>
    [% END %]
  </tr>
  [% FOREACH row IN Dates %]
  <tr>
    <td>[% row.Day %]</td>
    [% FOREACH date IN row.EndDates %]
    <td>[% date %]</td>
    [% END %]
  </tr>
  [% END %]
</table>
};

my $vars = {
    Users => [qw(user1 user2 user3 user4 user5)],
    Dates => [
              {
                  Day      => 'day1',
                  EndDates => [qw(dl1 dl2 dl3 dl4 dl5)],
              },
              {
                  Day      => 'day2',
                  EndDates => [qw(dl6 dl7 dl8 dl9 dl10)],
              },
              {
                  Day      => 'day3',
                  EndDates => [qw(dl11 dl12 dl13 dl14 dl15)],
              },
             ],
};

my $tt = Template->new();
$tt->process(\$templ, $vars) or die $tt->error();

[download]

Output:

date user1 user2 user3 user4 user5
day1 dl1 dl2 dl3 dl4 dl5
day2 dl6 dl7 dl8 dl9 dl10
day3 dl11 dl12 dl13 dl14 dl15

In reply to Re^4: How to skip certain values in a foreach loop by Anonyrnous Monk
in thread How to skip certain values in a foreach loop by Frederic_S

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