What are the best practices for updating and integrating regularly updated XML data from a partner into a PHP application?

Regularly updating and integrating XML data from a partner into a PHP application requires a systematic approach. One of the best practices is to create a script that fetches the XML data from the partner's server at regular intervals and updates the local database accordingly. This script should handle errors gracefully and log any issues for troubleshooting. Additionally, it's important to sanitize and validate the incoming XML data to prevent any security vulnerabilities.

<?php
// Fetch XML data from partner's server
$xmlData = file_get_contents('https://partner.com/data.xml');

if($xmlData) {
    // Parse XML data
    $xml = simplexml_load_string($xmlData);

    // Update local database with the parsed XML data
    // Example: $db->updateData($xml);

    echo "XML data successfully updated and integrated.";
} else {
    echo "Failed to fetch XML data from partner's server.";
}
?>