PHP True Async

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.

$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
});