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Example code of projectsaturnstudios/pocketflow-php

Informations about the package pocketflow-php

PocketFlow PHP

PocketFlow PHP: Minimalist LLM framework for PHP. Let Agents build Agents!

Language: PHP | License: MIT

License: MIT PHP ReactPHP Total Downloads

PocketFlow PHP is the first PHP implementation of the minimalist LLM framework concept

Get started with PocketFlow PHP:

Why PocketFlow PHP?

The PHP ecosystem was missing a minimalist LLM workflow framework... until now!

| | **Abstraction** | **PHP Integration** | **LLM Support** | **Lines** | **Dependencies** | |----------------|:-----------------------------: |:-----------------------------------------------------------:|:------------------------------------------------------------:|:---------------:|:----------------------------:| | LLPhant | Comprehensive | Framework agnostic
(Symfony/Laravel compatible) | Multiple providers
(OpenAI, Anthropic, Mistral, etc.) | ~15K+ | Heavy (many providers) | | LangChain PHP | Agent, Chain | Basic
(Work in progress) | Limited
(OpenAI, llama.cpp) | ~5K | Moderate | | **PocketFlow PHP** | **Graph** | **Framework Agnostic**
(Pure PHP, works anywhere) | **Bring Your Own**
(Use any HTTP client) | **~400** | **Minimal** |

How does PocketFlow PHP work?

The core abstraction: Graph-based workflow execution with simple nodes and flows.

Core Components:

  1. BaseNode: Foundation class with prep(), exec(), post() lifecycle
  2. Node: Extended with retry logic and fallback handling
  3. Flow: Orchestrates node execution with action-based routing
  4. BatchNode/BatchFlow: Process arrays of data through workflows
  5. AsyncNode/AsyncFlow: ReactPHP-powered parallel execution (optional)

Key Features:

Examples

Basic Hello World

LLM Integration Example

Self-Looping Chat Bot

Advanced Patterns

Batch Processing

Async Workflows (ReactPHP - Optional Dependency)

Conditional Routing

Comparison with Original PocketFlow

Feature Python PocketFlow PHP PocketFlow Notes
Core Abstraction ✅ Graph ✅ Graph Same philosophy
Async Support ✅ asyncio ⚠️ ReactPHP (optional) Different implementations
Framework Integration ❌ None ✅ Framework Agnostic Works with any PHP project
LLM Providers ❌ Manual ❌ Bring Your Own Both require manual integration
Type Safety ⚠️ Optional ✅ Full PHP 8.1+ strict types
Lines of Code 100 ~400 More features, still minimal

Installation & Setup

Requirements

Installation

Optional Dependencies

Quick Setup

  1. Install Package: composer require projectsaturnstudios/pocketflow-php
  2. Create Nodes: Extend Node or BaseNode classes
  3. Chain Workflows: Use $node->next($nextNode, 'action')
  4. Run Flows: $flow = new Flow($startNode); $flow->_run($shared);

LLM Integration Notes

Important: PocketFlow PHP is framework-agnostic and does not include LLM provider integrations. You need to:

  1. Choose Your LLM Client: OpenAI SDK, Guzzle HTTP, cURL, etc.
  2. Implement in Nodes: Add LLM calls in your exec() methods
  3. Handle Responses: Process LLM responses in your post() methods
  4. Manage State: Use &$shared parameters for conversation history

This approach gives you complete control over your LLM integrations without vendor lock-in.

Vendor Dependencies

Dependencies:

No Lock-ins:

Contributing

This is the world's first PHP implementation of PocketFlow! We welcome contributions:

Roadmap

License

MIT License - same as original PocketFlow

Acknowledgments

Built with ADHD by Project Saturn Studios

All versions of pocketflow-php with dependencies

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Requires php Version ^8.2
react/promise Version ^3.2 || ^2.0 || ^1.1
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