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21.4. Redirecting the Browser
21.4.1. Problem
You want to send a redirection back to
the browser.
21.4.2. Solution
Use $r->header_out to set the Location header,
then return REDIRECT:$r->header_out(Location => "http://www.example.com/somewhere");
return REDIRECT;
21.4.3. Discussion
If you set the Location header and
return REDIRECT, the client knows the address of the new page. This
is called an external redirection, because the browser (external to
the web server) handles the mechanics of requesting the new page. The
URL should be a complete URL (with http, etc.),
never a partial one.An
internal redirection is one where Apache sends back another page from
the same site. The browser never knows that the page has changed,
which means relative URLs from the page could be broken. Request an
internal redirection with:$r->internal_redirect($new_partial_url);
return OK;
Apache treats internal
redirections almost as though they were new requests: each phase of
the request cycle is called again for the new request. Unlike the
Location header,
internal_redirect takes only a partial URL. You
should have no logic after calling
internal_redirect other than to return OK.
21.4.4. See Also
Writing Apache Modules with Perl and C; Recipe 19.7; Recipe 8.5 in mod_perl
Developer's Cookbook; the Apache.pm manpage
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| 21.3. Accessing Cookie Values |  | 21.5. Interrogating Headers |
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