How to Use Ajax With Perl

The Ajax language lets you asynchronously retrieve and send data on your website. This means that the page does not refresh when you submit data using the Ajax language in Perl. Perl uses the "CGI" functions to use Ajax from Perl pages. Ajax is typically used to process forms without refreshing the page or opening an external website and displaying results on the current page.

Instructions

1. Open your Perl compiler and open the source code file. Add the libraries to the top of the file to include the Ajax CGI scripts. Add the following code to the top of the file:

   use CGI;
   my $cgi = CGI->new();
   main();

2. Add the Ajax code. For instance, the following code retrieves a username from a text box when the user clicks a submission button:

   $user = $cgi->param('username')

3. Display the results on the Web page. The following code uses Perl to display the results on the user's screen:

   HTML
   print $cgi->header();
   print $html;

References

• Perl: Using Ajax from Perl