2024年5月6日发(作者：)

php 一维数组递归树状结构英语

Recursive Tree Structure in PHP Using a One-Dimensional

Array.

Introduction.

A tree data structure is a hierarchical structure

composed of nodes connected by edges. Each node can have

multiple child nodes, but only one parent node. A tree

structure is often used to represent data that has a

hierarchical relationship, such as a file system or an

organizational chart.

Representing a Tree Structure in a One-Dimensional

Array.

In PHP, we can represent a tree structure in a one-

dimensional array using a parent-child relationship. Each

element in the array represents a node in the tree, and the

index of the element represents the node's identifier. The

parent-child relationship is established using the values

of the array elements.

For example, consider the following tree structure:

A.

/ 。

B C.

/ 。

D E F.

We can represent this tree structure in a one-

dimensional array as follows:

php.

$tree = [。