A basic but flexible tree data structure for php and a fluent tree builder implementation.
PHP library for handling tree structures based on parent IDs, e.g. a self-joined database table
An advanced tree management module using nested sets for Yii 2.
Powerful, yet simple to use tree utilities for easy handling of structured data stored in flat data structures, for example in databases.
A PHP library providing an implementation of the modified preorder tree traversal algorithm
Framework agnostic Nested Set (MPTT) implementation for PHP