Undefined index: wsCollection in /srv/mediawiki/php-1.28.0-wmf.15/extensions/Collection/Collection.php on line 348
There is currently no code to handle the odd case session disappeared between the request and the xhr call:
function wfAjaxCollectionGetItemList() { $collection = $_SESSION['wsCollection']; ... }
Adding a
session_start();
at the top and setting the $_SESSION variable should solve this problem.
@wassan.anmol117 The issue is the wsCollection key doesn't exist in the existing $_SESSION array here.
This is the meaning of "Undefined index" (the index is the array key).
When you doesn't have the array defined, you've this error instead:
$ psysh >>> $_SESSION['foo']; PHP error: Undefined variable: _SESSION on line 1
So, if we add a code that handles this exception, would it solve the problem? Or is there any other way to do it?
It would solve the fact the error is thrown but I fear this is a problem
for a lost session and how we need to recover from there.