amphp/amp
AMPHP (AMP) accelerates PHP concurrency with fibers, eliminating callbacks and generators. Built on PHP 8.1’s cooperative coroutines, it lets you run async tasks like sync code—ideal for I/O-bound apps. Use Amp\async() for parallel execution and Future::await() to handle results seamlessly. No event...
Amp no longer ships its own event loop. It's now based on Revolt. Revolt\EventLoop is quite similar to Amp's previous Amp\Loop. A very important difference is using float $seconds instead of int $milliseconds for timers though!
Future is a replacement for the previous Promise.
There's no need for callbacks or yield anymore!
Its await() method is based on fibers and replaces generator based coroutines / Amp\Promise\wait().
Amp\Deferred to Amp\DeferredFuture.Amp\Promise\wait(): Use Amp\Future::await() instead, which can be called in any (nested) context unlike before.Amp\call(): Remove the passed closure boilerplate and all yield keywords, interruption is handled via fibers now instead of generator coroutines.Amp\asyncCall(): Replace invocations with Amp\async(), which starts a new fiber instead of using generators.Amp\coroutine(): There's no direct replacement.Amp\asyncCoroutine(): There's no direct replacement.Amp\Promise\timeout(): Future::await() accepts an optional Cancellation, which can be used as a replacement.Amp\Promise\rethrow(): Unhandled errors are now automatically thrown into the event loop, so there's no need for that function anymore.Future::ignore() if needed, but should usually be handled in some way.Amp\Promise\wrap(): Use Future::finally() instead.Amp\getCurrentTime() to Amp\now() returning the time in seconds instead of milliseconds.Amp\delay() to accept the delay in seconds now instead of milliseconds.Amp\weakClosure() to allow a class to hold a self-referencing Closure without creating a circular reference that prevents automatic garbage collection.Amp\trapSignal() to await one or multiple signals.Promise combinators have been renamed:
Amp\Promise\race() has been renamed to Amp\Future\awaitFirst()Amp\Promise\first() has been renamed to Amp\Future\awaitAny()Amp\Promise\some() has been renamed to Amp\Future\awaitAnyN()Amp\Promise\any() has been renamed to Amp\Future\awaitAll()Amp\Promise\all() has been renamed to Amp\Future\await()CancellationToken has been renamed to Cancellation.CancellationTokenSource has been renamed to DeferredCancellation.NullCancellationToken has been renamed to NullCancellation.TimeoutCancellationToken has been renamed to TimeoutCancellation.CombinedCancellationToken has been renamed to CompositeCancellation.SignalCancellation has been added.Iterators have been removed from amphp/amp as normal PHP iterators can be used with fibers now and there's no need for a separate API.
However, there's still some need for concurrent iterators, which is covered by the new amphp/pipeline library now.
Amp\Closable has been added as a new basic interface for closable resources such as streams or sockets.
Strict types now declared in all library files.
This will affect callbacks invoked within this library's code which use scalar types as parameters.
Functions used with Amp\async() are the most likely to be affected by this change — these functions will now be invoked within a strict-types context.
Under maintenance, see corresponding branch.
No longer maintained.
No longer maintained.
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