I'd like to use $1 in the [cookie] flag of rewriteRule. I want to create a cookie with a part of the request url as in the following: RewriteRule ([0-9])/. - [CO=cookieName:$1:example.com] for example: If the request url is: http://www.example.com/1234, i want to set a cookie name "cookieName" with the value "1234" it seems no cookie is add when a dollar sign ($1) is between the cookie directive. Is this something possible ? Thank you