Thank you! -----Original Message----- From: Bob Showalter [mailto:[EMAIL PROTECTED]] Sent: Friday, December 06, 2002 9:45 AM To: '[EMAIL PROTECTED]'; Beginners@perl. org (E-mail) Subject: RE: Hash Question
> -----Original Message----- > From: Sean Rowe [mailto:[EMAIL PROTECTED]] > Sent: Friday, December 06, 2002 9:30 AM > To: Beginners@perl. org (E-mail) > Subject: Hash Question > > > I need to keep track of a user, all the web pages a user has > visited, and > the number of times the user visited each page. I get my > information from a > log file. Here's how I would like to say it programmatically: > > $Hash{"$User"}{"$Page"}{"$NumTimesVisited"} = $ANumber; No, it should probably look like this instead: $Hash{$User}{$Page}++; # increment number of visits Putting a single variable inside double quotes is useless. Also, you don't need a third level in this hash. There are only two levels needed: user and page. > > Is this possible? If so, how would I traverse this, as I > will not know > before hand the values in the hash; I will need to use > something like sort. To print a table of users and the pages they have visited, you can do something like: for my $u (sort keys %Hash) { for my $p (sort keys %{$Hash{$u}}) { print "User $u visited page $p $Hash{$u}{$p} times\n"; } } -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
