How do I access XML Data - php

Question

I am using PHP to connect to a SOAP API using GuzzleHttp.
Code
$client = new Client();
$headers = [
'Host' => 'server',
'Content-Type' => 'application/soap+xml; charset=utf-8',
'SOAPAction' => 'action'
];
$body = '<?xml version="1.0" encoding="utf-8"?>
<soap12:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap12="http://www.w3.org/2003/05/soap-envelope">
<soap12:Body>
<GetInventoryStatus xmlns="action">
<Credentials>
<Username></Username>
<Password></Password>
</Credentials>
<MaterialCode>' . $_GET['matcode'] . '</MaterialCode>
</GetInventoryStatus>
</soap12:Body>
</soap12:Envelope>';
$request = new Request('POST', 'web service here', $headers, $body);
$res = $client->sendAsync($request)->wait();
$xml1 = ($res->getBody());
After running the API, I get the result back in text but upon viewing the source code the below XML is getting returned back
<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope
xmlns:soap="http://www.w3.org/2003/05/soap-envelope"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<soap:Body>
<GetInventoryStatusResponse
xmlns="http://localhost/EnterpriseWebService/Enterprise Connect">
<GetInventoryStatusResult>
<MaterialCode>10029</MaterialCode>
<MaterialDescription>12 PT TANGO C2S</MaterialDescription>
<QuantityOnHand>138000.00</QuantityOnHand>
<QuantityAllocated>20400.00</QuantityAllocated>
<QuantityAvailable>117600.00</QuantityAvailable>
<QuantityOnOrder>0.00</QuantityOnOrder>
<QuantityInProduction>0.00</QuantityInProduction>
<ReorderQuantity>0.00</ReorderQuantity>
<ReorderLevel>0.00</ReorderLevel>
<DesiredLevel>0.00</DesiredLevel>
</GetInventoryStatusResult>
</GetInventoryStatusResponse>
</soap:Body>
</soap:Envelope>
If I echo the $xml1, I get everything in text format.
How do I access the variables through the XML?

Answer 1

You need to parse it. I have used DOMDocument but one could use other techniques.
<?php
$str = '<' . '?xml version="1.0" encoding="utf-8"?>
<soap:Envelope
xmlns:soap="http://www.w3.org/2003/05/soap-envelope"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<soap:Body>
<GetInventoryStatusResponse
xmlns="http://localhost/EnterpriseWebService/EnterpriseConnect">
<GetInventoryStatusResult>
<MaterialCode>10029</MaterialCode>
<MaterialDescription>12 PT TANGO C2S</MaterialDescription>
<QuantityOnHand>138000.00</QuantityOnHand>
<QuantityAllocated>20400.00</QuantityAllocated>
<QuantityAvailable>117600.00</QuantityAvailable>
<QuantityOnOrder>0.00</QuantityOnOrder>
<QuantityInProduction>0.00</QuantityInProduction>
<ReorderQuantity>0.00</ReorderQuantity>
<ReorderLevel>0.00</ReorderLevel>
<DesiredLevel>0.00</DesiredLevel>
</GetInventoryStatusResult>
</GetInventoryStatusResponse>
</soap:Body>
</soap:Envelope>';
// $xml = simplexml_load_string($str);
$xml = new DOMDocument();
$xml->loadXML($str);
$xpath = new DOMXpath($xml);
$nodes = $xpath->query('//*');
$names = array();
foreach ($nodes as $node)
{
$names[] = [
'name' => $node->nodeName,
'value' => $node->textContent,
];
}
print_r($names);