How can PHP be used to automatically reload data from an XML file when it is updated?

To automatically reload data from an XML file when it is updated, you can use PHP to periodically check the file's last modified timestamp and compare it with a stored timestamp. If the timestamps differ, the XML file has been updated, and you can reload the data accordingly. 

<?php
$lastModified = filemtime('data.xml');
$storedTimestamp = // retrieve stored timestamp from database or file

if ($lastModified > $storedTimestamp) {
    // Reload data from XML file
    $xml = simplexml_load_file('data.xml');
    
    // Process and update data as needed
    
    // Update stored timestamp to current timestamp
    // Update storedTimestamp in database or file
}
?>

Keywords

PHP XML file automatic reload data update file handling

Related Questions