CyCliC has asked for the wisdom of the Perl Monks concerning the following question:

im trying to write a form script but when I do this

print start_form();
    print p("Document nr: ", textfield("doc_nr"));
    print p("Document name: ", textfield("doc_name"));
    print p("Author: ", popup_menu("author", \@authors));
    print p(submit("DO"), reset("clear"));
    
    print end_form(), hr();
    $data = (param("doc_nr") . param("doc_name") . param("author") . l
+ocaltime() . "\n");

[download]
I get a "Use of uninitialized value" message on the $data ... line

Replies are listed 'Best First'.
Re: problem with using data
by davorg (Chancellor) on Jul 31, 2001 at 15:17 UTC

    That's because one of your form fields hasn't been filled in.

[reply]
Re: problem with using data
by tachyon (Chancellor) on Jul 31, 2001 at 16:14 UTC

    Add this debugging code (replace the current $data = .... line with all this: 

    my $doc_nr   = param('doc_nr')   || 'undef';
my $doc_name = param('doc_name') || 'undef';
my $author   = param('author')   || 'undef';
my $time     = localtime();

$data = $doc_nr.$doc_name.$author.$time."\n";

    [download]

    This will work as all elements will now be defined and you will be able to see the problem.

    cheers

[reply]
[d/l]
Re: problem with using data
by CyCliC (Novice) on Jul 31, 2001 at 15:32 UTC
    well the script works perfect when runing it command-line
    but when I run it in my browser (with all the fields filled)
    nothing happens
[reply]

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