HTTP Server
A non-blocking HTTP application server for PHP based on Amp
...Amp’s HTTP server is a non-blocking HTTP/1.1 and HTTP/2 application server written in PHP. This means that there’s no Apache or Nginx required to serve PHP applications with it. Multiple requests can be served concurrently and the application bootstrapping only needs to happen once, not once for every request. Several advanced components are available in separate packages, such as a routing, static content and WebSocket component.