outputXmlNicely.php

<?php

/* To output XML as a nicely formatted (line breaks and indentations) on screen */
$doc = new \DOMDocument('1.0');
$doc->loadXML($rawXml);
$doc->preserveWhiteSpace = false;
$doc->formatOutput = true;
$xml_string = $doc->saveXML();

echo $xml_string;