FAQ 9.11 How do I redirect to another page?


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This is an excerpt from the latest version perlfaq9.pod, which
comes with the standard Perl distribution. These postings aim to
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9.11: How do I redirect to another page?

Specify the complete URL of the destination (even if it is on the same
server). This is one of the two different kinds of CGI "Location:"
responses which are defined in the CGI specification for a Parsed
Headers script. The other kind (an absolute URLpath) is resolved
internally to the server without any HTTP redirection. The CGI
specifications do not allow relative URLs in either case.

Use of "CGI.pm" is strongly recommended. This example shows redirection
with a complete URL. This redirection is handled by the web browser.

use CGI qw/:standard/;

my $url = 'http://www.cpan.org/';
print redirect($url);

This example shows a redirection with an absolute URLpath. This
redirection is handled by the local web server.

my $url = '/CPAN/index.html';
print redirect($url);

But if coded directly, it could be as follows (the final "\n" is shown
separately, for clarity), using either a complete URL or an absolute

print "Location: $url\n"; # CGI response header
print "\n"; # end of headers


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