title: Searching for the best PHP nested sets class (PEAR class excluded)
body: <p>I'm looking for a PHP (with MYSQL) nested sets class with all needed functions.
  For example:</p>
  
  <p>createLeftNode, createRightNode,createRootNode, createSubNode,deleteNode and <strong>moveTree</strong>.  Not only 1 left, 1 right, 1 up and 1 down but also a part of a tree in a nother tree.</p>
  
  <p>Thanks!</p>