Using The Solarwinds IPmonitor API WSDL Webservice With SOAP And XPATH

<?php
function dumpDOMnodeList($xml)
{
    //USED TO DUMP THE XPATH RESULTS
    $docTmp = new DOMDocument();
    foreach($xml as $n) $docTmp->appendChild($docTmp->importNode($n,true));
    print_r($docTmp->saveHTML());
}

$soapVersion = '1.2';
$soapLocation = 'https://domain.com/soap/status.asmx?WSDL';
$soapContext = stream_context_create(array('ssl' => array('verify_peer' => FALSE)));
$soapParameters = array (
            'location' => $soapLocation,
            'login' => 'login',
            'password' => 'password',
            'stream_context' => $soapContext
            );         

//IPM.WSDL IS A LOCAL COPY OF STATUS.ASMX?WSDL
$soapClient = new SoapClient('ipm.wsdl',$soapParameters); 

//GET GROUPS
/*
$soapRequest = '<?xml version="1.0" encoding="utf-8"?>';
$soapAction = 'http://schemas.ipmonitor.com/ipm70/GetGroups';
*/

//GET MONITORS
/*MAIN GROUP WITHIN IPM, NEVER CHANGES CAN BE OBTAINED BY USING "GetGroups" METHOD... 
IT IS THE MAIN gtGroup ID WRAPPING THE RESPONSE*/
$groupID = 'XXXXXXXXXXXX'; 
$justTrouble = 'TRUE'; // ONLY RETURN DISTRESSED MONITORS

$soapRequest = '<?xml version="1.0" encoding="utf-8"?>'.$groupID.''.$justTrouble.'';
$soapAction = 'http://schemas.ipmonitor.com/ipm70/GetMonitors';

$soapResult = $soapClient->__doRequest($soapRequest, $soapLocation, $soapAction, $soapVersion); //REQUEST, LOCATION, ACTION, VERSION

$doc = new DOMDocument();
$doc->LoadXML($soapResult);

$xpath = new DOMXpath($doc);
$xpath->registerNamespace('soap', 'http://schemas.xmlsoap.org/soap/envelope/');
$xpath->registerNamespace('def', 'http://schemas.ipmonitor.com/ipm70/'); 

$alerts = $xpath->query("/soap:Envelope/soap:Body/def:GetMonitorsResponse/def:GetMonitorsResult/def:rtMonitor");

dumpDOMnodeList($alerts);
?>

Iterate Over Nested / Multi-Level DOM NodeList

<?php
function processNodeList($nodeList)
{
    # text nodes don't have child nodes
    if ($root->nodeName == '#text')
    {
        $xml = $root->nodeValue;
    }
    else
    {
        # start tag
        $xml = sprintf('<%s>', $root->nodeName);
        # contents
        foreach ($root->childNodes as $node)
        {
            $xml .= processNodeList($node);
        }
        #end tag
        $xml .= sprintf('', $root->nodeName);
        # for some reason the blog puts html comment tags around the closing sprintf, just FYI to remove those as they are not intended
    }
    return $xml;
}

$doc = new DOMDocument();
$doc->loadXML($xml);
$xpath = new DOMXPath($doc);

$nodeList = $xpath->query('/');
$xml = processNodeList($nodeList);

echo $xml; 
?>

Import Xpath Query NodeList To A New XML Document

<?php

$doc = new DOMDocument();
$doc->loadxml($xml); //XML STRING
$xpath = new DOMXpath($doc);
$xpathResults = $xpath->query(""); //YOUR QUERY
$nodes = $xpathResults->length;

if($nodes > 0)
{
 $newDom = new DOMDocument('1.0','UTF-8');
 $root = $newDom->createElement('root');
 $root = $newDom->appendChild($root);
 
 foreach ($xpathResults as $domElement)
 {
  $domNode = $newDom->importNode($domElement, true);
  $root->appendChild($domNode);
  $newXML = $newDom->saveXML();     
 }   
 header("Content-type: application/xml");
 echo $newXML;
} 

?>

Conditionally query specific elements within an XML document

Given:

     the name
     the desc
     misc garbage
     1

Suppose you had 100 of these and wanted to obtain just the name and description for a specific id

<?php
$doc = simplexml_load_string();

$results = $doc->xpath("//tree[contains(id,'1')]/child::*[self::name or self::desc]"); 

?>

That will get the job done

Nested queries with DOM and Xpath

<?php
//CREATE NEW DOM INSTANCE
$doc = new DOMDocument();

//LOAD XML FROM FILE
$doc->load('data.xml');

//CREATE A NEW XPATH INSTANCE
$xpath = new DOMXpath($doc);

//ASSIGN FIRST XPATH TO VARIABLE
$containers = $xpath->query('/item/container');

//COUNT THE NUMBER OF NODELISTS
$count = $containers->length;

//LOOP THROUGH THE NODELISTS
for($i=0;$i<$count;$i++)
{
   //CREATE ANOTHER XPATH INSTANCE BASED ON THE PREVIOUS
   $subitems = $xpath->query('.//subitem',$containers->item($i));

   //COUNT THE NUMBER OF SUB-NODELISTS
   $subcount = $subitems->length;

   //LOOP THROUGH AND ACCESS ITEMS PER USUAL
   for($j=0;$j<$subcount;$j++)
   {
      //echo $containers->item($i)->...;
      //echo $subitems->item($j)->...;
   }
}
?>