So, in the previous two instalments [1] [2], I've wrangled together a basic echo server over TCP and UDP respectively. Before merging both code so we have a server that fully implement RFC 862, we need a wee bit of... Refactoring To explain the main motivation, we need to come

In my previous post, I've implemented an echo server functioning with the TCP protocol. However the RFC indicates that echo should work with both TCP and UDP [1]. When I implemented the TCP version I consider two different sets of network functions in PHP. the stream_socket_* set and the

A self-contained server implementation in PHP (8.1) of RFC 862 (echo). That old (1983) RFC describes an IP-based client-server application where the client sends data to the server, and the server returns the same data back to the client (hence the name "echo"). It used to be