nodes.php

<?php
declare(strict_types=1);

require_once __DIR__ . '/vendor/autoload.php';

use PocketFlow\Node;
use PocketFlow\SharedStore;

class ExampleNode extends Node
{
    public function prep(SharedStore $shared): mixed
    {
        // Prepare input data for this node
        return null;
    }

    public function exec(mixed $prepResult): mixed
    {
        // Execute the node's core logic
        return 'Hello from PocketFlow-PHP!';
    }

    public function post(SharedStore $shared, mixed $prepResult, mixed $execResult): ?string
    {
        // Process results and decide the next action
        $shared->result = $execResult;
        return null; // null = stop the flow
    }
}