The author reflects on outreach efforts for the TrueAsync PHP async library, explains why the RFC is unlikely to be accepted—citing community misunderstanding and lack of support—and confirms the project will continue to a 1.0 release despite limited resources and shifting focus to Python.
TrueAsync Server is a high‑performance HTTP/1.1, HTTP/2 and HTTP/3 server written in C that embeds directly into the PHP process, runs entirely on a single thread, eliminates inter‑thread communication, supports multi‑protocol on one port, and offers a suite of low‑level optimizations and a clear API for developers.
This article examines the challenges and possibilities of adding multithreading to PHP, discussing the TrueAsync RFC, single‑threaded + offload patterns, memory‑manager redesign, object movement, shared objects, region‑based memory, and actor models to guide future PHP kernel evolution.
TrueAsync is a PHP async extension that, together with Docker Compose, PHP‑FPM and Nginx, lets developers write coroutine‑based asynchronous code, provides ready‑made demos, and offers a lightweight, Docker‑first stack for building high‑throughput web services.
TrueAsync brings true asynchronous capabilities to PHP by leveraging Fibers and an event‑loop, enabling thousands of concurrent I/O operations in a single thread, dramatically improving performance, reducing resource usage, and opening new possibilities for high‑performance APIs, real‑time apps, and microservices.
