Magento Set All Categories to “Is Anchor = Yes”

<?php error_reporting(E_ALL); ini_set('display_errors', '1'); // Load Up Magento Core define('MAGENTO', realpath('')); require_once(MAGENTO . '/app/Mage.php'); $app = Mage::app(); $categories = Mage::getModel('catalog/category') ->getCollection() ->addAttributeToSelect('*') ->addAttributeToFilter('is_anchor', 0) ->addAttributeToFilter('entity_id', array("gt" => 1)) ->setOrder('entity_id') ;…