"a malicious user (or just a very ignorant one) can enter inputs that are so ambiguous"

Have you considered introducing restrictions on what/how a user can enter input by ruling out which input is considered valid and which one is considered otherwise?.

"the error will happen when it's just adding an element to a pre-existing hash"

show a more detailed code example that represents this problem, without that example it is just not easy to pinpoint where the issues lie and we'd be only trying to make informed guesses, but they just remain 'guesses' until proven..

Excellence is an Endeavor of Persistence. Chance Favors a Prepared Mind.

In reply to Re: Prevent "Out of Memory" error by biohisham
in thread Prevent "Out of Memory" error by tford

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.