How can the PHP error message "Call to undefined function xmlrpc_encode_request()" be resolved in the given code snippet?

The error message "Call to undefined function xmlrpc_encode_request()" occurs when the xmlrpc extension is not enabled in PHP. To resolve this issue, you need to enable the xmlrpc extension in your PHP configuration. This can be done by uncommenting or adding the line `extension=xmlrpc` in your php.ini file and then restarting your web server.

php

// Enable the xmlrpc extension
extension=xmlrpc

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How can the PHP error message "Call to undefined function xmlrpc_encode_request()" be resolved in the given code snippet?

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