Looping Through All a Server's Sessions in PHP

Question

Is there a way in PHP to get a list of all sessions (and the variables within each) on the server?

Basically, we have a maintenance function which needs to know whic

Answer 1

I used the @mgroat method in the ajax call, but there is a problem in the header of the HTTP response that the Set-Cookie header appears multiple times and jQuery reports an error:

Set-Cookie header is ignored in response from url: mysite.com/admin/ajax/main_ajax. Cookie length should be less than or equal to 4096 characters.

The solution is to add header_remove("Set-Cookie") right after session_start().