I have a question about passing data through URL's. I'm passing hashes in a CGI script, but sometimes when I click on a link that passes a larger hash, nothing happens. I don't get any message. I'm guessing there is a limit to the amount of data I can pass through a URL? If this is the case, are there any ways to fix this problem?
Thanks for the help, Josiah -----Original Message----- From: Bob Showalter [mailto:[EMAIL PROTECTED]] Sent: Tuesday, January 08, 2002 11:32 AM To: 'Josiah Altschuler'; '[EMAIL PROTECTED]' Subject: RE: passing a hash using cgi.pm > -----Original Message----- > From: Josiah Altschuler [mailto:[EMAIL PROTECTED]] > Sent: Tuesday, January 08, 2002 11:05 AM > To: '[EMAIL PROTECTED]' > Subject: passing a hash using cgi.pm > > > Hi. I'm having trouble passing a hash from one program to > another through a > link using cgi.pm. My first program passes the hash like this (it's > actually a hash that is one element of an array of hashes): > > print pre a ( { -href => > "http://140.247.111.176/cgi-bin/redundancies.pl?request=%{$clu > sArrayHash[1]} > " }, "Redundant sequences"); > > > The code from my program that receives the hash looks like this: > > %myHash = param("request"); > print header, start_html("Results"), > hr(), > h1("Results"); > for $key (keys %myHash) > { > print ("$key, $myHash{$key}"); > } > print end_html(); > > > And the web page ends up displaying data that looks like this: > %{HASH(0x1bc2a60)}, Writing "%{$clusArrayHash[1]}" doesn't expand the hash inside the double quotes. You would need to use something like: "@{[%{$clusArrayHash[1]}]}" But even that won't work, because param() will just read that in as a single string. Something like this should work, letting CGI.pm do the work for you: my $query = CGI->new({request => [%clusArrayHash[1]]})->query_string; Now you can use $query after the ? in your href, and you can read the param back in as a hash. -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
