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Example code of php-graph/inference

Informations about the package inference

Inference

This project is a PHP component designed to simplify the integration and usage of Large Language Models (LLMs) from various providers, including Ollama, OpenAI, Mistral, DeepSeek, and more. It offers a unified interface for:

The goal is to provide a simple, extensible, and developer-oriented abstraction for AI inference, enabling optimal performance and rapid integration into your PHP projects.

Get Started

First, install phpGraph Inference via the Composer package manager:

Usages

Ollama

Chat

The following example demonstrates how to use Ollama as a local LLM provider for a standard chat interaction. You instantiate a resource, build your message history, and get the assistant's response.

Chat Stream

To stream the response token-by-token (useful for chat UIs and progress feedback), instantiate the resource with chatStreamed() and provide a handler that processes each chunk as it arrives.

Embeddings

To generate vector embeddings with Ollama, simply use the embed() method on the resource and pass your text or batch of texts. The returned array contains the embedding vector(s).

OpenAI

Chat

For OpenAI's GPT models, the usage is nearly identical. After configuring your API key and provider, send your conversation history and extract the assistant's response from the returned structure.

Chat Stream

OpenAI also supports streaming chat completions. Use the streaming resource and provide a handler that is called for each streamed content delta.

Embeddings

To get high-quality embeddings from OpenAI, specify the embedding model and input texts. The response contains an array of embeddings matching the input order.

Mistral

Chat

Mistral provides OpenAI-compatible chat endpoints. Simply use your API key and the right model. The format and usage remain consistent with the other providers.

Chat Stream

Streaming responses are supported just like with OpenAI, making it easy to plug into chat UIs or progressive LLM pipelines.

Embeddings

For embeddings, use the appropriate Mistral model. The structure of the response is similar to OpenAI's, with each embedding in the data array.

DeepSeek

Chat

DeepSeek also exposes an OpenAI-compatible API. You can interact with it in the same way, making switching providers simple.

Chat Stream

Streaming works identically: use the streamed resource and process each chunk via your handler.

Embeddings

DeepSeek embeddings are retrieved with the same API contract. Specify the embedding model and input; parse the embeddings from the data array in the response.

Example :

Symfony Command

All versions of inference with dependencies

PHP Build Version
Package Version
Requires php Version >=8.3
symfony/http-client-contracts Version ^3.6
symfony/http-client Version ^7.3
doctrine/collections Version ^2.3
Composer command for our command line client (download client) This client runs in each environment. You don't need a specific PHP version etc. The first 20 API calls are free. Standard composer command

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