What are the implementation methods of remote calling in PHP7.0?
Remote calling refers to calling a program or service in another computer system from one computer system so that these systems can interact and collaborate transparently. In web applications or distributed systems, remote calling is one of the most common technical means. Through remote calling, different systems can be easily integrated to achieve more complex application functions.
In PHP7.0, there are many ways to implement remote calls. The following is a brief introduction to some common implementation methods.
RPC is a method of remotely calling a program or function on another machine through the network. In RPC, the communication between the client and the server is through the TCP/IP protocol. The client passes the program parameters to the server, and the server executes the corresponding code and returns the results to the client. RPC communication is based on binary and does not depend on programming language and hardware platform, and can achieve interoperability between different programming languages.
In PHP7.0, we can implement RPC calls in the following ways:
1) Use PHP's SOAP extension (Simple Object Access Protocol): SOAP is a lightweight XML Protocols can be used in Web services to communicate on different platforms. Using SOAP to call remote functions requires a WSDL file to describe the runtime environment between the service provider and service consumer.
2) Use PHP's XML-RPC extension (XML Remote Procedure Call): XML-RPC is a protocol for transmitting XML messages based on the HTTP protocol and can be used in distributed systems. The XML-RPC protocol can implement functions that can call each other in different languages.
REST (Representational State Transfer) is a Web architectural style that usually uses the HTTP protocol to transmit data. RESTful API is an API design that uses REST structure to facilitate data transfer using HTTP requests.
In PHP7.0, we can use the following methods to implement RESTful API calls:
1) Use PHP's cURL extension: cURL is a protocol used to access HTTP, FTP, TELNET and other protocols Library that can be used to implement communication between the client and the server. We can use PHP's cURL extension to implement RESTful API calls.
2) Use third-party libraries: There are many third-party libraries that can be used to implement RESTful API calls, such as Guzzle, Requests, etc. These libraries usually provide a simpler way to call APIs, reducing the amount of code developers write.
Socket communication is a network communication protocol that establishes a virtual channel on the network to allow data exchange between different machines. . In PHP7.0, we can use Socket communication to implement remote calls:
1) Use PHP's Socket extension: PHP provides a Socket extension that can implement Socket communication based on TCP and UDP. Using Socket communication requires developers to write their own protocols and data processing logic.
2) Use third-party libraries: Some third-party libraries, such as ReactPHP, Swoole, etc., provide a simpler Socket communication method, which can make Socket communication more convenient.
Summary
PHP7.0 provides a variety of ways to implement remote calls, including RPC, RESTful API, Socket communication, etc. Different methods are suitable for different scenarios and needs, and you need to choose the appropriate method according to the specific situation. Developers can choose different ways to develop and use it according to their own needs and actual conditions.
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