zend framework - Magento create nested categories programmatically and recursivelly -

is there way create nested categories using string like:

category 1/category 2/category 3/category 4/ 

a such of method me create them in easy way.

i have base method:

public function createcategories($categories, $parentid=2){      $arrcategories = explode("/", $categories);      foreach($arrcategories $category){         $category = new mage_catalog_model_category();         $category->setname($category);         $category->setisactive(1);         $category->setdisplaymode('products');         $category->setisanchor(0);          $parentcategory = mage::getmodel('catalog/category')->load($parentid);         $category->setpath($parentcategory->getpath());                        $category->save();     } } 

but how create recursively function?

i have grouped them in array:

array(2) {   [1] => array(3) {     [0] => string(9) "ping pong"     [1] => string(19) "accessori ping pong"     [2] => string(13) "racchette nere"   }   [2] => array(3) {     [0] => string(9) "ping pong"     [1] => string(21) "ping pong accessories"     [2] => string(11) "black rackets"   } } 

the id 1 , 2 store views id.

thanks