Wikimedia Bugzilla is closed!

On my own private wiki, when I use the code (seen in the URL), it generates PHP
notices:
 Notice: Undefined offset: -3 in D:\XAMPP\htdocs\w\languages\Language.php on
line 1727
 Notice: Undefined offset: 16 in D:\XAMPP\htdocs\w\languages\Language.php on
line 1727
 Notice: Undefined offset: 17 in D:\XAMPP\htdocs\w\languages\Language.php on
line 1727
 Notice: Undefined offset: 102 in D:\XAMPP\htdocs\w\languages\Language.php on
line 1727
 Notice: Undefined offset: 103 in D:\XAMPP\htdocs\w\languages\Language.php on
line 1727

This is most likely from the {{ns:-3}}, {{ns:16}}, {{ns:17}}, etc. that appear
on the page.

The line in question is in getNsText(), which is:
		return $wgNamespaceNamesEn[$index];

A check should be added to make sure that the namespace actually exists.