Value pair url modeling for subpages via htaccess - regex

Question

Ok, currently to get the URL in the format I want I use this in my .htaccess
RewriteRule ^user.php/([0-9]+)/?$ user.php?id=$1 [NC,L]
RewriteRule ^user.php/edit/([0-9]+)/?$ user.php?id=$1&type=edit [NC,L]
Urls, redirect to
domain/user/7/ -> domain/user?id=7
domain/user/edit/7/ -> domain/user?id=7&type=edit
Works fine, but I want to be able to do better value pair urls instead of just strict matches.
An example is
domain/user/key/value/key/value/key/value/
-> domain/user.php?key=value&key=value&key=value
I was looking at
.htaccess rewrite to convert directories into /key/value/key/value
The example works well if you just want to redirect from the main path, ie localhost/index.php, but I want to only be triggered when it's domain/user and I couldn't get it to match with using 'user' as the trigger
My current .htaccess
# Pretty url's
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME}\.php -f
RewriteRule ^(.*)$ $1.php
RewriteRule ^user.php/([0-9]+)/?$ user.php?id=$1 [NC,L]
RewriteRule ^user.php/edit/([0-9]+)/?$ user.php?id=$1&type=edit [NC,L]
Is this possible, and if so how?

Answer 1

Deja vu time!!! I wrote that answer sometime back :P
Here is what you can do for your case:
RewriteEngine On
RewriteRule ^(user)/([^/]*)/([^/]*)(/.*)?$ /$1/$4?$2=$3 [L,QSA,NC]
RewriteRule ^(user)/?$ /$1.php [L,NC]
RewriteRule ^user.php/([0-9]+)/?$ user.php?id=$1 [NC,L]
RewriteRule ^user.php/edit/([0-9]+)/?$ user.php?id=$1&type=edit [NC,L]
# Pretty url's
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME}\.php -f
RewriteRule ^(.*)$ $1.php [L]
Using these rules a URL of /user/n1/v1/n2/v2/n3/v3/n4/v4 will be INTERNALLY forwarded to /user.php?n4=v4&n3=v3&n2=v2&n1=v1 treating each pair of URL segments separated by / as a name-value pair forQUERY_STRING`.

Answer 2

Ok this is working for me
RewriteRule ^(user.php)/([^/]*)/([^/]*)(/.*)?$ /$1/$4?$2=$3 [L,QSA,NC]
RewriteRule ^(user)/?$ /$1.php [L,NC]
# Pretty url's
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME}\.php -f
RewriteRule ^(.*)$ $1.php [L]
URL
/user/n1/v1/n2/v2/n3/v3/n4/v4
Outputs
Array ( [n4] => v4 [n3] => v3 [n2] => v2 [n1] => v1 )
anubhava, you da man :)