How can developers ensure that their XML files are properly encoded in UTF-8 when interacting with PHP functions?

Developers can ensure that their XML files are properly encoded in UTF-8 by specifying the encoding when creating the XML document. This can be done by setting the encoding attribute of the XML declaration to 'UTF-8'. Additionally, developers should make sure that any input data being used to create the XML document is also properly encoded in UTF-8. 

$xml = new DOMDocument('1.0', 'UTF-8');
$xml->appendChild($xml->createElement('root'));
echo $xml->saveXML();

Keywords

XML UTF-8 encoding PHP functions validation

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