Hi all,

Let's say you had to print a whole bunch of radio buttons while inside a loop, and that you then wanted to call them using the param function.

The param function would look like this: 

if (! param )
  { show_form();      }
elsif (defined param ('file_chosen))
  { parse_text();     }
elsif (defined param('$temp_name'))
  {print print_results(); }

[download]

and somewhere down the file, you have something like:

while ($counter<=$#doc_offset_array) { 
  @temp_array = @{$array_of_arrays[$counter]
};

$temp_name =$doc_offset_array[$counter];
foreach $i (@temp_array) {
  print radio_group(-name=>'$temp_name',    
                    -values=>[@temp_array],
                    -linebreak=>'true'); 
}
}
}

[download]

My problem is that I can't get param to handle a scalar as an argument.

If I use single quotes in both sets of code, the elsif statement executes, but the radio buttons are all in one group rather than separate groups.

If I just use $temp_name (without quotes) in the radio_group, and single quotes around it in the param function, the radio buttons are fine, but the elsif statement doesn't execute.

Any suggestions?

Thanks

2001-03-28 Edit by Corion : Added CODE tags and tried to fix the indentation

In reply to Param and Scalars by Laila

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.