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How to create a RPC service in PHP? I believe many inexperienced people don't know what to do about it. Therefore, this article summarizes the causes and solutions of the problem. Through this article, I hope you can solve this problem.

The full name of RPC is Remote Procedure Call, which translates to "remote procedure call". It is mainly used for remote communication and mutual call between different systems.

For example, there are two systems, one written by PHP and the other written by JAVA, and PHP needs to use RPC if it wants to call a method of a class in JAVA.

How do you adjust it? It is impossible to call directly, only PHP can request the service of JAVA through some custom protocol, JAVA parses the protocol, instantiates the class locally and invokes the method, and then returns the result to PHP.

Here we use PHP's socket extension to create a server and client to demonstrate the calling process.

The RpcServer.php code is as follows:

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