Community-built PHP SDK wraps OpenAI's whole API

What it does

OpenAI PHP is a community-maintained SDK that wraps the OpenAI REST API for PHP 8.2+ projects. It maps the full API surface—chat, embeddings, images, audio, fine-tuning, vector stores, and the newer Responses endpoint—into typed PHP objects you can read by property or dump to an array. Think of it as a translation layer that turns OpenAI’s JSON into something idiomatic for Laravel, Symfony, or plain PHP codebases.

The interesting bit

The library doesn’t just chase the latest endpoints; it also carries deprecated resources like Assistants, Threads, and the old FineTunes API, which is either convenient baggage or archaeological preservation depending on your migration status. The factory builder is unusually flexible, letting you inject custom PSR-18 HTTP clients, swap base URIs for Azure proxies, and attach your own stream handlers without subclassing.

Key highlights

• Covers the full API: models, chat, embeddings, images, audio, vector stores, batches, and the new Responses API
• Streaming support via server-sent events for real-time generation
• Typed response objects with both property access and a toArray() escape hatch
• Configurable factory supports custom HTTP clients, headers, query params, and alternative base URIs
• Maintains deprecated endpoints (Assistants, Threads, FineTunes, Edits) alongside current ones

Verdict

PHP developers who want a structured, native way to call OpenAI without managing raw HTTP payloads. Everyone else already has their language’s official client.