A basic but flexible tree data structure for php and a fluent tree builder implementation.
Eloquent Tree is a tree model for Laravel Eloquent ORM.
PHP library for handling tree structures based on parent IDs, e.g. a self-joined database table
Powerful, yet simple to use tree utilities for easy handling of structured data stored in flat data structures, for example in databases.
Framework agnostic Nested Set (MPTT) implementation for PHP
Using Nested Sets Pattern to Model Tree Structure in PHP
A PHP library providing an implementation of the modified preorder tree traversal algorithm
Effective tree structures in Laravel 4-5