True Asynchronous inside PHP
Imagine PHP with coroutines, where familiar functions support concurrent I/O.
No colored async functions. Just do spawn() and go!
70+ standard PHP functions work non-blocking out of the box — fread, fwrite, curl, PDO, sleep and more.
PHP True Async brings native coroutines to the PHP core — no extensions swapping out blocking functions, no framework magic. Regular PHP functions (fread, fwrite, curl, PDO, fsockopen) become non-blocking automatically inside a coroutine.
$task1 = spawn(function() {
$pdo = new PDO($dsn);
$stmt = $pdo->prepare("SELECT * FROM users WHERE id = ?");
$stmt->execute([1]); // non-blocking I/O, yields to other coroutines
return $stmt->fetch();
});
$task2 = spawn(function() {
$socket = fsockopen($host, 9000);
fwrite($socket, "ping"); // non-blocking, runs concurrently with $task1
});| Repository | Description |
|---|---|
php-src true-async |
PHP core with TrueAsync API + coroutine scheduler |
| php-async | Extension implementing the TrueAsync API (libuv reactor) |
| server | Async Server with Http2, Http3 |
| php-true-async-rfc | RFC, design documents and rationale |
| releases | Pre-built binaries for Linux, macOS and Windows |
Full installation instructions for Linux, macOS, Windows and Docker: → Download & Install
Full API reference and guides: → Documentation
We welcome contributions of all kinds — code, docs, testing, and community support. → Contributing Guide