Add Simples to same Categories as Parent Configurable Magento

<?php

require_once 'abstract.php';

class Mage_Shell_Simples_Category extends Mage_Shell_Abstract
{
    /**
     * Run script
     *
     */
    public function run()
    {
        if ($this->getArg('associate')) {
            /** MageAustralia_Simples_Category */
            $products = Mage::getModel('catalog/product')->getCollection()
                ->addAttributeToFilter('type_id', Mage_Catalog_Model_Product_Type::TYPE_SIMPLE)
                ->joinField('category_id', 'catalog/category_product', 'category_id', 'product_id = entity_id', null, 'left')
                ->addAttributeToFilter(
                                'status',
                                array('neq' => Mage_Catalog_Model_Product_Status::STATUS_DISABLED)
                                );
            $products->getSelect()->group('e.entity_id');
            $products->load();

            foreach($products as $product) {
                    echo $product->getId() . "\n";
                    //$groupedParentIds = Mage::getModel('catalog/product_type_grouped')->getParentIdsByChild($product->getId());
                    $groupedParentIds = array();
                    $configurableParentIds = Mage::getModel('catalog/product_type_configurable')->getParentIdsByChild($product->getId());
                    $parentIds = array_merge($groupedParentIds, $configurableParentIds);
                    $categoryIds = array(47);
                    foreach($parentIds as $parentId) {
                            $parent = Mage::getModel('catalog/product')->load($parentId);
                            $intersect = array_intersect($categoryIds, $parent->getCategoryIds());
                            if(!empty($intersect)){
                                    print_r($intersect);
                                    $product->setCategoryIds($parent->getCategoryIds());
                                    $product->setVisibility(1);
                                    print_r($parent->getCategoryIds());
                                    $product->save();
                                    continue;
                            }
                    }
            }
        } else {
            echo $this->usageHelp();
        }
    }

    /**
     * Retrieve Usage Help Message
     *
     */
    public function usageHelp()
    {
        return <<<USAGE
Usage:  php -f category_simple_associate.php -- [options]

  --associate           associate simple products with grouped / configurable category
  help                          This help

USAGE;
    }
}
$shell = new Mage_Shell_Simples_Category();
$shell->run();


?>