Vfrdtyky

I am trying to understand how MW 1.31.1 works. I have the following hook:

$wgHooks['UserLoginComplete'] = 'onUserLoginComplete';



function onUserLoginComplete(User &$user, &$inject_html, $direct){

      $_SESSION['mydata']  = 'some data';

}

It basically stores some data in $_SESSION when a user is successfully authenticated. How can I keep $_SESSION['mydata'] in session as long as I am authenticated.

The puzzling thing to me is when I checked "Keep me logged in" at signin and come back to the wiki site a few hours later. I am still authenticated with the system, but $_SESSION['mydata'] disappears.

Since 1.27 when SessionManager was introduced, MediaWiki does its own session handling. Depending on the value of $wgPHPSessionHandling it will either ignore PHP sessions completely or try to sync them with MediaWiki sessions. Use MediaWiki's session handling methods instead:

SessionManager::getGlobalSession()->set( 'mydata', 'some data' );

As for data disappearing from the session, it is not meant as a persistent storage mechanism and the long-term behavior is entirely dependent on what storage mechanism is configured for it - check $wgSessionCacheType and $wgObjectCacheSessionExpiry.