getting parent element's index in xml and php? - php

Question

I am trying to get the parent element, I think of an XML tag. Basically I need to go through multiple <HotelRoomResponse> results and find this parent tag that contains a child tag with this exact number value: <roomTypeCode>17918</roomTypeCode> I am not sure how to do this or what would be the best way. Because I then need to get ALL the information in that specific <HotelRoomResponse>. Here is an example XML response:
<HotelRoomResponse>
<cancellationPolicy> </cancellationPolicy>
<rateCode>200482409</rateCode>
<roomTypeCode>17918</roomTypeCode>
<rateDescription>
Deluxe Sunset View - All Inclusive-Up to $300Resort Credit
</rateDescription>
<roomTypeDescription>
Deluxe Sunset View - All Inclusive-Up to $300Resort Credit
</roomTypeDescription>
<supplierType>E</supplierType>
</HotelRoomResponse>
So there are various of these result types and I need to loop through it and find this specific one.
Here is how I am connecting to the XML:
$ch = curl_init();
$fp = fopen('room_request.xml','w');
curl_setopt($ch, CURLOPT_URL, "http://api.ean.com/ean-services/rs/hotel/v3/avail?cid=55505&minorRev=13&apiKey=4sr8d8bsn75tpcuja6ypx5g3&locale=en_US&currencyCode=USD&customerIpAddress=10.184.2.9&customerUserAgent=Mozilla/5.0+(Windows+NT+6.1)+AppleWebKit/535.11+(KHTML,+like+Gecko)+Chrome/17.0.963.79+Safari/535.11&customerSessionId=&xml=<HotelRoomAvailabilityRequest><hotelId>".$hid."</hotelId><arrivalDate>05/14/2012</arrivalDate><departureDate>05/18/2012</departureDate><RoomGroup><Room><numberOfAdults>3</numberOfAdults><numberOfChildren>0</numberOfChildren><childAges>0</childAges></Room></RoomGroup><includeDetails>true</includeDetails></HotelRoomAvailabilityRequest>");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Accept: application/xml'));
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_FILE, $fp);
$val = curl_exec($ch);
curl_close($ch);//Close curl session
fclose($fp); //Close file overwrite
$avail = simplexml_load_file('room_request.xml');
Any ideas are welcome.

Answer 1

To find all HotelRoomResponse nodes which has a roomTypeCode child node with the value '17918', use the following:
$match = $avail->xpath("/HotelRoomResponse[child::roomTypeCode[text() = '17918']]");
EDIT: $match will be an array holding all matches.

Answer 2

Ok figured it out!!!! Here is what I used to get a node with text = value. Then I got all sibling elements.
// load as file
$contents = new SimpleXMLElement($source,null,true);
$result = $contents->xpath('HotelRoomResponse[roomTypeCode="17918"]');
foreach($result as $key=>$node)
{
$cancelPolicy = $node->cancellationPolicy;
}

Answer 3

$xml = new SimpleXMLElement('room_request.xml');
/* Search for <HotelRoomResponse><roomTypeCode> */
$result = $xml->xpath('/HotelRoomResponse/roomTypeCode');
Result will give you a list of nodes you can then check and get the parent node if appropriate
see here http://www.php.net/manual/en/simplexmlelement.xpath.php
Edit 2.
Key was the namespace
<?php
$ch = curl_init();
$fp = fopen('room_request.xml','w');
curl_setopt($ch, CURLOPT_URL, "http://travellinginmexico.com/test/room_request.xml");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Accept: application/xml'));
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_FILE, $fp);
$val = curl_exec($ch);
curl_close($ch);//Close curl session
fclose($fp); //Close file overwrite
$xml = new SimpleXMLElement(file_get_contents('room_request.xml'));
/* Search for <HotelRoomResponse><roomTypeCode> */
$xml->registerXPathNamespace('ns2', 'http://v3.hotel.wsapi.ean.com/');
$result = $xml->xpath("HotelRoomResponse[child::roomTypeCode[text() = '153725']]");
foreach($result as $obj=>$node)
{
var_dump($node->roomTypeCode);
}
With the example you sent will get specific information