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That shouldn't happen. Are you processing the post data with PHP?

Sounds like mod_rewrite is performing a redirect in which case post data will get dumped.

I'm a bit confused as to what you're trying to accomplish with those rewrite rules.

I get that, but your first condition looks like you set a condition on the presence of a query string, but the rule takes a 'pretty' url and transforms it to a query string... seems contradictory.

But, if your user submits to /page.php?a=b and the site redirects then, yes, absolutely you will lose your post data.

Every url, link, src and href on your site should be "pretty" and the transformation in mod_rewrite should be for the server only.

Last edited by Gipetto (2007-04-18 12:59 am)

I'm gonna wager that when it works you're hitting a weird loophole or bad implementation.

POST data can be retained across mod_rewrite transformations - I just think your rules are wrong.
For example I do:

RewriteEngine On

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule .* /index.php [L]

Which simply states that any request that doesn't resolve to a real file or directory comes back to index.php - This is basically every request to the site. I don't lose any post data.

I still think you're getting an 'external redirect' vs. an 'internal redirect' in which case your POST is getting dropped. It might be the double transformation, but I'm not sure.

Nope, I don't lose GET or POST.
mod_rewrite automatically handles GET separately, so whatever you do to the url the get string will be appended to it automatically after the transformation.

Gipetto wrote:

Nope, I don't lose GET or POST.
mod_rewrite automatically handles GET separately, so whatever you do to the url the get string will be appended to it automatically after the transformation.

When I was playing around with something else I was doing, it was losing the GET variables on rewrite. I just appended them manually. I think there might also be a flag called qsappend.

Or, as a last resort, check the manual

Note: Query String

The Pattern will not be matched against the query string. Instead, you must use a RewriteCond with the %{QUERY_STRING} variable. You can, however, create URLs in the substitution string, containing a query string part. Simply use a question mark inside the substitution string, to indicate that the following text should be re-injected into the query string. When you want to erase an existing query string, end the substitution string with just a question mark. To combine a new query string with an old one, use the [QSA] flag.

So, I managed to fix the problem by using [P], which makes use of mod_proxy and apparently preserves POST data on this server.

Thanks for the help and input, all!

_Nik