# mod_rewrite
RewriteEngine On

# lets replace all the /var1/value1 found after the controller/action by &var1=$value1 query string
# mod_rewrite is looping here if the rule matches
RewriteRule    ^/([^/]+)/([^/]+)/(?:(&[^/]+=[^/]+)/)*([^/]+)/([^/]+)(.*)    /$1/$2$3&$4=$5$6    [QSA,NS,N]

# lets replace the controller/action per the appropriate query string
RewriteRule ^/([^/]+)?/?([^/]+)?([^/]*)    %{ENV:Rewrite-Folder}/index.php?_controller=$1&_action=$2$3    [QSA,NS,L]