comment on

Hi,

When you fill out a form, and click submit, the form sends name/value pairs for each form input element to the url specified in the form's action attribute.

If the form specifies method="get", then the name/value pairs are tacked onto the end of the url specified in the form's action attribute. For instance:

http://www.some_site.com/dir1/page1.htm?name1=val1&name2=val2
[download]

The name value pairs are in this part:

name1=val1&name2=val2
[download]

Note that the name value pairs are separated by '&', and the whole series of name/value pairs is tacked onto the end of the url with a '?'.

If you want to provide links (= a tags) for your users with different name value pairs, then you can construct the url's with the desired name value pairs yourself. For instance:

use strict;
use warnings;
use 5.010;

my $age = 10; 
my $name = 'Tom';
my $webpage = "http://www.somesite.com/page1.htm";

my $url = "$webpage?age=$age&name=$name";
[download]

The CGI.pm module allows you to use print() to send the html to the browser that you want the browser to display. So to display a link with the above url, you would do this:

my $html =<<"END_OF_HTML"; 
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http:/
+/www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
<title>Title of the document</title>
</head>
<body>

<div>Here is a link for you to search for blah blah blah:</div>
<a href=$url>link1</a>

</body>
</html>
END_OF_HTML

print $html;
[download]

Note that CGI.pm has some shortcut functions to print the doctype( header() ); the html, head, and opening body tag( start_html() ); etc.

In reply to Re: Perl-CGI refresh with different param(s)?? by 7stud
in thread Perl-CGI refresh with different param(s)?? by jonc

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