public static function getInstance() { if (!isset(self::$instance)) { self::$instance = new Category(); } return self::$instance; }
public static function newInstance() { if (!self::$instance instanceof self) { self::$instance = new self(); } return self::$instance; }
/** * Delete a category * * @param int $delete_category * @return bool */ function deleteCategory($delete_category = 0) { $category = Category::instance($this); return $category->deleteCategory($this, $delete_category); }