Duplicating Magento (sub)categories with php?
<p>I'm working on a car part store with Magento and there needs to be +20 sub categories(lights, brakes etc) under each brand subcategories(Alfa, Volvo etc) under rootcategories "Used" and "New". That's hell of a work do manually, adding them one by one and I don't want to buy 60-80$ an extension for a school work like this.</p>

<p>I've already done some research on google but nothing really seems to fit for this case, as I'm a noobie with Magento and php.</p>