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How to use XML-RPC to construct Web Service in PHP, for this problem, this article introduces the corresponding analysis and solution in detail, hoping to help more partners who want to solve this problem to find a more simple and feasible method.

At present, there are two protocol standards for Web Service communication, one is XML-RPC, the other is SOAP. XML-RPC is relatively simple, appears early, and SOAP is more complex, mainly when it needs to be stable, robust, secure, and complex interaction.

PHP integrates access to XML-RPC and SOAP protocols, both of which are concentrated in the xmlrpc extension. In addition, in PHP's PEAR, both PHP 4 and PHP 5 have integrated the XML-RPC extension by default, and this extension has nothing to do with the xmlrpc extension and can independently implement the protocol interaction of XML-RPC. If there is no xmlrpc extension, it is recommended to use the PEAR::XML-RPC extension.

Install the xmlrpc extension

If the php extension for xmlrpc is not installed on your system, please install it correctly.

Under the Windows platform, first put the extension php_xmlrpc.dll under the PHP installation directory in C:\ Windows or C:\ Winnt directory (the extension of PHP4 is in the C:\ php\ extensions directory, and the extension of PHP5 is in the C:\ php\ ext directory), and put the semicolon before extension=php_xmlrpc.dll in C:\ Windows\ php.ini or C:\ Winnt\ php.ini "remove it, then restart the Web server and see if phpinfo () has a XML-RPC project to determine if the xmlrpc extension has been installed correctly.

On the Unix/Linux platform, if the xmlrpc extension is not installed, recompile PHP, add the-- with-xmlrpc option when configure, and then check phpinfo () to see if xmlrpc is installed properly.

(note: the following operations are based on the normal installation of xmlrpc expansion, please install it correctly.)

How XML-RPC works

XML-RPC is roughly the whole process of using XML to communicate. First of all, a RPC server is constructed to send out the request encapsulated by XML from the RPC client, and the processing result is returned to the RPC client in the form of XML, and the client analyzes the XML to get the data it needs.

The server side of XML-RPC must have ready-made functions for client calls, and the functions and methods in the requests submitted by the client side must be consistent with those on the server side, otherwise it will not be able to get the desired results.

Now I'll use a simple code to describe the whole process.

XML-RPC practice

The server side uses the xmlrpc_server_create function to generate a server side, and then registers the RPC call interface that needs to be exposed, accepts the XML data from the RPC client POST, and then processes it, and the processing result is displayed to the client in the form of XML.

The code is as follows: rpc_server.php

Once the server side is constructed, then construct our RPC client. The client accesses port 80 of the XML-RPC server through Socket, then encapsulates the RPC interface that needs to be called into XML, submits it to the RPC server through the POST request, and finally gets the result returned by the server.

The code is as follows: rpc_client.php

This data by get method

Then we use the xmlrpc_decode function to encode the XML as a string of PHP, so we can deal with it at will, and the whole Web Service interaction is completed.

Whether it is XML-RPC or SOAP, as long as it allows us to make stable and secure remote procedure calls and complete our project, then even the whole Web Service is successful. In addition, if you can, you can also try to use XML-RPC in PEAR to do something similar above, which may be easier and more suitable for you.

This is the answer to the question about how to use XML-RPC to construct Web Service in PHP. I hope the above content can be of some help to you. If you still have a lot of doubts to be solved, you can follow the industry information channel to learn more about it.

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