Your code syntax above is incorrect - the line: 

open(FLATFILE, ">> /tmp/flatfile.data" or die $!...);

[download]

..should read: 

open(FLATFILE, ">> /tmp/flatfile.data") or die $!;

[download]

I don't know whether this is just an error you introduced while posting this question otherwise it should have given you an error.

Apart from that I can't see anything wrong with the file writing logic which leads me to a couple of conclusions:

Are you sure the permissions are correct? Chances are when you run it via the form it's not using same user account that it does at the command line - and that account may not have permission to write (which is likely as most "web-user" accounts on servers have very few permissions by default for security reasons).

What platform/OS etc is this running on may I ask?

--- Jay

All code is untested unless otherwise stated.
All opinions expressed are my own and are intended as guidance, not gospel; please treat what I say as such and as Abigail said Think for yourself.
If in doubt ask.

In reply to Re: flat file problem by gothic_mallard
in thread flat file problem by csuhockey3

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.