Grab an OPML file generated by Fargo.io and return an JSON array of the outline

fargo2json.php

<?php 
$OPML = 'ENTER THE LINK TO YOUR OPML FILE';
$rawOPML = file_get_contents($OPML);

$doc = new DOMDocument();
$doc->loadXML($rawOPML);
$arrayOutline = OPMLToArray($doc->childNodes->item(0));
$jsonOutline = json_encode($arrayOutline);


function OPMLToArray($node) {
	$array = false;
	if($node->hasAttributes()) {
		foreach($node->attributes as $attr) {
			$array['attributes'][$attr->nodeName] = $attr->nodeValue;
		}
	}
  
	if($node->hasChildNodes()) {
		if($node->childNodes->length == 1) {
			if($node->firstChild->nodeName == '#text') {
				$array = $node->firstChild->nodeValue;
			}
			else {
				$array[$node->firstChild->nodeName] = $node->firstChild->nodeValue;
			}
		}
		else {
			foreach($node->childNodes as $childNode) {
				if($childNode->nodeType != XML_TEXT_NODE) {
					$array[$childNode->nodeName][] = OPMLToArray($childNode);
				}
			}
		}
	}
  return $array;
}