Ok, I'm using CGI to generate pages for a web-based database thing. I have a table of values which I'm outputting, and at the right edge of each row is a button marked "Delete". So it looks like this: 
print Tr(
          start_form(-action => url()),
          hidden(-name => "hidden", 
             -value => $row),
          td($row->[0]),
          td($row->[1]),
          td($usage),
          td($cumu_usage),
          td(submit(-name => "choice", 
                        -value => "Delete")),
          end_form(),
        );

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Where $row is a reference to a row of data. When the user clicks the "Delete" button, the reloading script notices this and tries to look up param("hidden") to figure out where to find the data it wants to delete, like this: 
...
elsif (param("choice") eq "Delete") {
  print (param("hidden"));
...

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But instead of outputing a memory address, this outputs the 0th element of the array $row was referring to, and so naturally, if I try 
$dataref = param("hidden");
$date = $dataref->[0];

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Perl complains that I can't use that string as an array reference. Why isn't the reference getting passed through as a reference? Thanks kindly, LassiLantar.

Update: I fixed it by using the primary key of the row to get back to the data I wanted. Thanks for the help! (This is my first question to the Monks, and I must say, I'm impressed =)

In reply to Passing a reference as the value of a hidden html field by LassiLantar

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