How to encrypt session id in cookie?

Question

While I was reading about session hijacking articles, i learned that it would be nice to encrypt session id value that is stored in a cookie.

As far as I know, when I s

Answer 1

Make this script, access it from a web browser, then check your cookies.

You will likely see something like this

Site         Cookie      Value
mysite.com   PHPSESSID   6fktilab3hldc5277r94qh2204

PHP does a fine job if generating a nice, unique id. There's not point in encrypting this.