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How PHP creates simple RPC Services

2025-04-02 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Development >

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Editor to share with you PHP how to create a simple RPC service, I believe that most people do not know much about it, so share this article for your reference, I hope you can learn a lot after reading this article, let's learn about it!

RPC definition

RPC (Remote Procedure Call) is a remote procedure call, which means that the specific implementation of the called method is not local to the program, but somewhere else. It is mainly used for remote communication and mutual call between different systems.

For example, A calls the remoteAdd method provided by B:

First, establish a TCP connection between An and B.

Then A serializes the method name (here is remoteAdd) and the method parameters (10,20) into a byte stream.

B accepts the byte stream sent by A, then deserializes to get the target method name and method parameters, then executes the corresponding method call (possibly localAdd) and returns the result 30

An accepts the result of the remote call

Some remote calls choose the lower-level socket protocol, while others choose the higher-level HTTP protocol.

Benefits of remote calls:

Decoupling: when the method provider needs to implement changes within the method, the caller is completely unaware of it and does not have to make any changes; this approach is often used in cross-departmental, cross-company cooperation, and the provider of the method is often called the exposed party of the service.

Here, PHP Socket is used to create a server and a client. The directory structure is as follows:

Server side

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