Reference capture groups of multiple RewriteCond in RewriteRule

Question

When I have multiple RewriteCond chained together, only the capture groups of the last RewriteCond can be referenced with %0-%9.

In the fol

Answer 1

After experimenting some more, it would be possible to parse all parameters as environment variables and use them like that. I doubt it is very efficient though and I think any use-case that would need such a construction would be better of using a php page router. For fancy url's Jon Lin's solution would probably work better. It does however sort-of mimic what I had in mind.

I'll, however, put the code in here for demonstration:

#Parse all query key-value pairs to an environment variable with the q- prefix
RewriteCond %{QUERY_STRING} ^([^=]*)=([^&]*)(&(.*)|$)$
RewriteRule ^(.*)$ $1?%4 [E=q-%1:%2,N]

#If 'param1' existed in the query string...
RewriteCond %{ENV:q-param1} !^$
RewriteRule ^foo$ bar/%{ENV:q-param1} [END]

or even...

#Keep the original query string
RewriteCond %{ENV:qstring} ^$
RewriteCond %{QUERY_STRING} ^(.*)$
RewriteRule .* - [E=qstring:#%1]

#parse the query parameters to environment variables
RewriteCond %{ENV:qstring} ^#([^=]*)=([^&]*)(&(.*)|$)$
RewriteRule ^(.*)$ - [E=q-%1:%2,E=qstring:#%4,N]

#See that the original query string is still intact
RewriteCond %{ENV:q-param1} !^$
RewriteRule ^foo$ bar/%{ENV:q-param1} [QSA]