Can You Switch PHP Sessions In a Session?

Question

I have two apps that I\'m trying to unify. One was written by me and another is a CMS I am using. My authentication happens in the one I coded and I\'d like my CMS to know t

Answer 1

I've been working on perfecting this and here is what I've come up with. I switch to a parent session using session names in my child apps and then back to my child app's session. The solution creates the parent session if it does not exist.

$current_session_id = session_id();
$current_session_name = session_name();

session_write_close();

$parent_session_name = 'NameOfParentSession';

// Does parent session exist?   
if (isset($_COOKIE[$parent_session_name])) {

    session_id($_COOKIE[$parent_session_name]);
    session_name($parent_session_name);
    session_start();

} else {
    session_name($parent_session_name);
    session_start();

    $success = session_regenerate_id(true);
}

$parent_session_id = session_id();

// Do some stuff with the parent $_SESSION 

// Switch back to app's session
session_write_close();
session_id($current_session_id);
session_name($current_session_name);
session_start();