Php representation of a data structure having, for every nodes, multiple children:
- It is a non oriented graph, connected and acyclic with a root node (like a tree)
- The representation of the tree is by a linked list
- The tree has three methods to retrieve for every node its parent, the left child of its parent, its right sibling
##Uses This data structure has multiple uses in web development where it happens very often: you can think about categories tree in a ecommerce website or about a sitemap.
To be able to represent this data structure we must know the relationship child-parent for every node