amphp/amp is a PHP library providing fundamental asynchronous concurrency primitives: Futures (promises) and Cancellations. It is built on top of the Revolt event loop and leverages PHP 8.1 fibers for cooperative multitasking, eliminating the need for generator-based coroutines or callback-heavy APIs. The library offers a Future class with methods like map(), catch(), finally(), and await() for composing asynchronous operations, along with combinators (await, awaitFirst, awaitAny, awaitAnyN, awaitAll) for concurrent execution. Cancellation is handled via a clean interface with implementations for timeouts (TimeoutCancellation), OS signals (SignalCancellation), manual cancellation (DeferredCancellation), and composition (CompositeCancellation). Utility functions include async() for spawning fibers, delay() for non-blocking sleep, trapSignal() for awaiting signals, and weakClosure() to prevent circular references in closures. The architecture is modular, with internal state management separated from public APIs, and strict typing throughout. External dependency is limited to revolt/event-loop for the event loop and suspension API.
TelegramRSS is a PHP web service that acts as a proxy between clients and a Telegram API server, providing RSS and JSON feeds of Telegram channel content. Built with AMPHP for asynchronous handling, it features rate limiting, IP-based access control, and middleware-based request processing. The service fetches messages from Telegram via a backend API server and formats them as RSS or JSON responses with media support.