How do I access the HTTP Header of request in a CGI script?

Question

I\'ve used Perl a bit for small applications and test code, but I\'m new to networking and CGI.

I get how to make the header of a request (using CGI.pm and printing

Answer 1

In addition to the CGI.pm http() method you can get HTTP headers information from the environment variables.

So in case you are using something like CGI::Minimal, which doesn't have the http method. you can do something like:

  my $header = 'HTTP_X_REQUESTED_WITH';

  if (exists $ENV{$header} && lc $ENV{$header} eq 'xmlhttprequest') {
   _do_some_ajaxian_stuff();
  }