If you were using warnings you should/would be getting these
sorts of warnings:
Use of uninitialized value in delete at
Attempt to free unreferenced scalar
What's funny is that when I run this bad code:
%hsh = qw(a 1 b 2 c 3 d 4);
for $key (%hsh) {
delete $hsh{$key};
}
$num = %hsh;
print "$num\n";
I get alot of warnings then a core dump. If I add 'use warnings' (or -w or $^W = 1), I get a few warnings and I don't get the core dump.
Are you using
strict and warnings? My guess is no, since
if you were that line would be:
foreach my $session (%Sessions) ...
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: |
| & | | & |
| < | | < |
| > | | > |
| [ | | [ |
| ] | | ] |
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.