I have a page Alpha, which contains a "Category: X" link, but the "Category: X" page does not have the page Alpha listed on it. When I edit the page Alpha then the "Category: X" page correctly lists the Alpha page. My question: how can I force, with MediaWiki calls, an update of the category links. I have tried with the following code to even check if the category links are OK, but this does not seem to work. Thanks for any ideas.
$pageName = "Alpha"; $title = new Title(); $title = $title->newFromText($pageName);
$linkCache = new LinkCache(); $linkCache->preFill($title);
$catLinks = $linkCache->getCategoryLinks();
print_r($catLinks, "catLinks");