Searching for the best PHP nested sets class (PEAR class excluded)

Question

I'm looking for a PHP (with MYSQL) nested sets class with all needed functions. For example:

createLeftNode, createRightNode,createRootNode, createSubNode,deleteNode and moveTree. Not only 1 left, 1 right, 1 up and 1 down but also a part of a tree in a nother tree.

Thanks!

Answer 1

look at the nested behavior of Doctrine