do u know how to create parent category's sub cat?

[youngz]

do u know how to create parent category's sub cat?

 

like apple shop. there is parent's subcategory list in a page.

 

i want to make that and finally could't make it.

 

i put the categoryController.php

 

 

if (sizeof($subCategories) == 0 AND (int)self::$category->id_parent > 1)

{

$parentCategory = new Category((int)self::$category->id_parent, (int)self::$cookie->id_lang);

$subCategories = $parentCategory->getSubCategories((int)self::$cookie->id_lang);

}

 

it didn't work at all.

 

plz tell me how to make that category templete page.

 

thanks in advance.