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I have this rule:

RewriteEngine On
RewriteRule   ^/page/([a-zA-Z0-9]+)\?(.*)$    /index.php?page=$1&$2

It should take something like this:


and go to the page:


I've tested this with tools like RegExr and RegexPal, and it works there. But when putting it into Apaches config, visiting the url gives Apaches 404 page.

Can anyone help?

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up vote 2 down vote accepted

If you want to pass the existing query string verbatim, mod_rewrite provides the QSA flag for this purpose. Using it, your rule set could be simplified to the following:

RewriteEngine On
RewriteRule   ^/page/([a-zA-Z0-9]+)$    /index.php?page=$1 [QSA]

mod_rewrite will then automatically append any existing query string to the one that you've added via your replacement. The result is effectively the same as Steven Monai's approach, but I feel this method a bit cleaner.

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By default mod_write matches against REQUEST_URI, which only contains the URI but not the dynamic parameters, so it will discard everything after question mark.

To match against full URI, you need to use THE_REQUEST instead (or if there's another method , please enlighten me!). Please note that it contains the full request the client sent, for example "GET /foo?bar=baz HTTP/1.1".

Try something like

RewriteCond %{THE_REQUEST} ^(.*)$
RewriteRule ^GET /page/([a-zA-Z0-9]+)\?(.*) HTTP.*$    /index.php?page=$1&$2
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So this would be the only way to keep the GET parameters on a rewrite? – borntyping Nov 12 '10 at 11:48
As far as I know, yes. But I might be wrong, too, since mod_rewrite truly is damned voodoo and its flexibility amazes me every time. :-) – Janne Pikkarainen Nov 12 '10 at 11:50
Ok, thanks. Any idea how I could get the parts of THE_REQUEST that I need? – borntyping Nov 12 '10 at 12:19
It's late Friday afternoon and my brain activity is nearing zero, but I edited my reply. Try something like that. – Janne Pikkarainen Nov 12 '10 at 12:24
You can also access the query string with QUERY_STRING. – Sam Halicke Nov 12 '10 at 15:42

Do you have rewrite engine turned on?

RewriteEngine On
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Yes. Other rewrite rules are working, but are disabled while I make this work. – borntyping Nov 12 '10 at 11:22

Janne's assessment of why your rule doesn't work is correct. But I would take a less complicated approach to solve it:

RewriteRule ^/page/([a-zA-Z0-9]+)$ /index.php?page=$1&%{QUERY_STRING}

There's no need to pick apart the raw request to get at the query string when Apache already gives it to you in %{QUERY_STRING}.

The list of server variables available to you via the %{VARNAME} syntax is documented here.

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