What are some best practices for integrating XML declarations in PHP files?

When integrating XML declarations in PHP files, it is best practice to use the `header()` function to set the content type to `text/xml`. This ensures that the browser interprets the response as XML and displays it correctly. 

<?php
header('Content-type: text/xml');
echo '<?xml version="1.0" encoding="UTF-8"?>';
// Your XML content goes here
?>

Keywords

XML declarations integration PHP files error handling

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