I need script to manage hierarchical data in MySQL database using nested set model. Simple PHP interface is required.
The required functions:
* display node tree as <ul> <li> structure (incl. numeric index, e.g. 1., 1.1., 1.2., 1.2.1., etc.)
* create node (add child)
* delete node (along with the sub-tree)
* change node position (along with the sub-tree)
* change node parent (along with the sub-tree)