# ReactiveX/RxPHP

Reactive extensions for PHP

Repository: https://github.com/ReactiveX/RxPHP
Canonical: https://ross.abutalabs.com/products/rxphp
Language: PHP
License: MIT
License Family: permissive
Topics: rxphp, reactivex, observables, asynchronous
Last push: 2026-04-08T13:59:54+00:00

## Health v2 (maintenance only)
Score: 62/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 76, release rhythm 22, longevity 100
- inputs: {"age_days": 3875, "days_push": 147, "days_rel": 310, "gap_med": 400, "n_releases_24m": 2}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1732, forks 139 (observed 2026-08-28T04:05:28.800930+00:00)

## What it is
RxPHP is the ReactiveX implementation for PHP, providing a library for composing asynchronous and event-based programs using observable streams. It integrates with event loops like ReactPHP and supports interop with ReactPHP promises.

## Use cases
- compose asynchronous event-based programs in PHP
- process streams of data with observable sequences
- convert between observables and ReactPHP promises
- handle timers and intervals reactively
- build reactive pipelines over arrays and events

## When to choose
- you want ReactiveX-style observable streams in a PHP project
- you already use ReactPHP event loops or promises
- you need composable async/event handling with operators like flatMap and take

## When to avoid
- you need high-performance async in a language with better concurrency support
- your project is synchronous and doesn't need event-driven patterns
- you need a maintained, actively developed reactive library for PHP

## Facets
- artifact type: library
- maturity: maintenance
- function: concurrency, streaming
- domain: developer-tools, backend
- platform: php, cli
- tags: reactive-extensions, observables, reactphp, event-loop, asynchronous

## Member repositories
- ReactiveX/RxPHP (main) score 62

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:28.800930+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:31:29.955872+00:00, confidence not recorded.
  - readme: https://github.com/ReactiveX/RxPHP (fetched 2026-08-28T04:05:28.800930+00:00, sha 2d8487bf77e8)
- Data as of 2026-08-30T08:39:29.467469+00:00.