Features — OxPHP

Run PHP

Execution model

Persistent workers, cooperative fibers and true background threads give you control over the request lifecycle.

Worker mode

01

Persistent PHP workers bootstrap once and handle thousands of requests. Superglobals, buffers and headers soft-reset between requests; autoloaders, containers and DB connections persist.

Each worker handles hundreds of concurrent requests via PHP Fibers. Sleeps and awaits yield the fiber instead of blocking the thread, and with runtime hooks so do native sleep(), socket reads, connects and TLS waits.

Async promises

03

Dispatch closures to a dedicated thread pool and await the results. The all, race and any combinators handle parallel fan-out.

Early response

04

Send the response to the client immediately, then keep processing in the background: queue jobs, write logs, warm caches.

Decorators

05

Intercept function and method calls with PHP 8 attributes to retry, cache, trace or guard them without touching call sites.

SSE streaming

06

Real-time Server-Sent Events straight from PHP, with explicit flush control and no surprises from proxy buffering.

Serve

HTTP & delivery

The web-server layer nginx used to own (routing, static files, TLS, compression and protection), configured with environment variables.

Three routing modes

07

Traditional file mapping, framework front-controller, or SPA fallback, switched by one variable. Worker mode stacks on top of any of them.

Static files

08

In-memory content cache, automatic MIME detection, ETag and Last-Modified headers, streaming for large files.

Compression

09

Zstandard, Brotli and gzip out of the box, negotiated per client by q-value with a level per codec. Cached static files get a precompressed Brotli copy.

Built-in TLS

10

TLS termination from two variables (PEM certificate and key), with the minimum protocol version enforced at startup.

Rate limiting

11

Per-IP limits with configurable windows. Over-limit requests get 429; a full PHP queue answers 529 backpressure.

Timeouts

12

Header-read timeout against Slowloris, request timeouts, and a graceful drain window on shutdown.

Custom error pages

13

Your own HTML per status code: drop 404.html or 503.html in a directory and point one variable at it.

Graceful shutdown

14

SIGTERM drains in-flight connections before exit, so rolling deploys don't drop requests.

Coordinate

Shared state

Process-wide concurrent primitives so workers coordinate without Redis or APCu. In-process operations take microseconds instead of network round-trips.