You should, of course, be using CGI for your basic CGI needs, and for session management, CGI::Session. No need to roll your own. Enjoy the read!

Update:
Now I see that you already got this answer in your earlier thread: session variables. Be sure to read the documentation for CGI::Session.

use CGI::sesssion::File;
use CGI;

my $cgi = new CGI;      
my $sid = $cgi->cookie(SESSION_COOKIE) || $cgi->param("sid") || undef;

//creating a new session 
my $session = new CGI::Session::File(undef
{LockDirectory=>"//enter the path of database server",
Directory=>"//enter the path of database server"}) or die $CGI::Sessio
+n::errstr;

print "Your session id is ", $session->id();
  

// A cookie is being created which is then being send to the user brow
+ser

$cookie = $cgi->cookie(CGISESSID => $session->id );
print $cgi->header(-cookie=>$cookie);     


$session->save_param($cgi, ["login_name", "password"]);
[download]

this is the script i have designed reading the doc what
i want to do is when ever a userlogs on through the html page
i use my cgi script to get userdetails like logging time , logout time, username , password and store it in a database
please help me