Why should php socket programming be divided into server php socket and client php socket?

  question

Why should php socket programming be divided into server php socket and client php socket? Php itself is not a server? ? A little puzzled.

I studied the tutorial of this website:http://www.codeceo.com/articl …

Please look at the great god, he said that the server, the client php socket is What Do You Mean? ?

  • First of all, you have to understand the meaning of socket in this context: socket here refers to http socket, which is built on tcp/ip/mac/ optical fiber cable (transport layer/network layer/link layer/physical layer). socket is commonly known as socket, which is end-to-end communication (client/server), not unilateral behavior. tcp determines port, ip and mac determine host, and host plus port is http socket here.