Add new nodes to Kyero XML

gistfile1.txt

// NEW: Inserts fields at specific position in XML
function simplexml_insert_after(SimpleXMLElement $insert, SimpleXMLElement $target)
{
    $target_dom = dom_import_simplexml($target);
    $insert_dom = $target_dom->ownerDocument->importNode(dom_import_simplexml($insert), true);
    if ($target_dom->nextSibling) {
        return $target_dom->parentNode->insertBefore($insert_dom, $target_dom->nextSibling);
    } else {
        return $target_dom->parentNode->appendChild($insert_dom);
    }
}

add_filter( 'ph_kyero_property_values', 'custom_kyero', 10, 3 );
function custom_kyero($property_xml, $post_id, $portal_id)
{
    $property = new PH_Property($post_id);
	
	$insert = new SimpleXMLElement("<pool>" . $property->pool . "</pool>");
	// Get the last nodeA element
	$target = current($property_xml->xpath('//baths[last()]'));
	if ( $target === false )
	{
		$target = current($property_xml->xpath('//beds[last()]'));
	}
	
	simplexml_insert_after($insert, $target);
	
	$insert = new SimpleXMLElement("<surface_area><built>" . $property->build . "</built><plot>" . $property->plot . "</plot></surface_area>");
	// Get the last nodeA element
	$target = current($property_xml->xpath('//pool[last()]'));
	
	// Insert the new element after the last nodeA
	simplexml_insert_after($insert, $target);

    return $property_xml;
}

// OLD: Just appends fields to end

add_filter( 'ph_kyero_property_values', 'custom_kyero', 10, 3 );
function custom_kyero($property_xml, $post_id, $portal_id)
{
    $property = new PH_Property($post_id);

    $property_xml->addChild('pool');
    $property_xml->pool = ( $property->pool == 'Yes' ? 1 : 0 );
    
    $surface_area_xml = $property_xml->addChild('surface_area');
    $surface_area_xml->addChild('built');
	$surface_area_xml->built = $property->build;
	$surface_area_xml->addChild('plot');
	$surface_area_xml->plot = $property->plot;
    
    return $property_xml;
}