fig16_06.pl

PERL语言资料 可以用于PERL程序设计

#!/usr/bin/perl
# Fig. 16.6: fig16_06.pl
# Program to read cookies from the client's computer.

use strict;
use warnings;
use CGI qw( :standard );

print( header(), start_html( "Read cookies" ) );
print( "<font face = \"arial,sans-serif\" size = 3>" );
print( strong( "The following data is saved in a cookie " ) );
print( strong( "on your computer." ) );
print( br(), br() );

my %cookies = readCookies(); 

print( "<table border = \"5\" cellspacing = \"0\" " );
print( "cellpadding = \"10\">" );

foreach ( "Name", "Height", "Color" ) {
   print( "<tr>" );
   print( "   <td bgcolor = #aaaaff>$_</td>" );
   print( "   <td bgcolor = #aaaaaa>$cookies{ $_ }</td>" );
   print( "</tr>" );
}

print( "</table>" );
print( end_html() );

sub readCookies
{
   my @cookieArray = split( "; ", $ENV{ 'HTTP_COOKIE' } );
   my $cookieName;
   my $cookieValue;
   my %cookieHash;

   foreach ( @cookieArray ) {
      ( $cookieName, $cookieValue ) = split ( "=", $_ );
      $cookieHash{ $cookieName } = $cookieValue;
   } 
   
   return %cookieHash; 
}

###########################################################################
#  (C) Copyright 2001 by Deitel & Associates, Inc. and Prentice Hall.     #
#  All Rights Reserved.                                                   #
#                                                                         #
#  DISCLAIMER: The authors and publisher of this book have used their     #
#  best efforts in preparing the book. These efforts include the          #
#  development, research, and testing of the theories and programs        #
#  to determine their effectiveness. The authors and publisher make       #
#  no warranty of any kind, expressed or implied, with regard to these    #
#  programs or to the documentation contained in these books. The authors #
#  and publisher shall not be liable in any event for incidental or       #
#  consequential damages in connection with, or arising out of, the       #
#  furnishing, performance, or use of these programs.                     #
###########################################################################