How i can get sessionid from this SOAPXML - php

Question

I want to get sessionid from this XML piece of code:
<soapenv:envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<soapenv:header>
<soapenv:body>
<p725:loginresponse xmlns:p725="http://www.fleetboard.com/data">
<p725:loginresponse sessionid="0001nABbah-I8f75oDrVbHrBgOv:s96fb0a4m3"></p725:loginresponse>
</p725:loginresponse>
</soapenv:body>
</soapenv:header>
</soapenv:envelope>
I have tried this but this doesn't work:
$soap=simplexml_load_string($result);
$xml_response = $soap->children('http://schemas.xmlsoap.org/soap/envelope/')->Body()->children()->p725;
echo $session_id = (int) $xml_response->session_id;

Answer 1

There are two ways to do this. The first is as you are currently doing it, but this involves various changes of namespace and means you need to keep on getting the right child elements and the attribute itself...
$soap=simplexml_load_string($result);
$xml_response = $soap->children("http://schemas.xmlsoap.org/soap/envelope/")->header->body;
$session_id = $xml_response->children("http://www.fleetboard.com/data")->loginresponse->loginresponse;
echo $session_id->attributes()->sessionid.PHP_EOL;
Or you can use XPath, where you will need to register the namespace with the document first and then select the loginresponse element with a sessionid element. This will return a list of matches, so you have to take the first one using [0]...
$soap=simplexml_load_string($result);
$soap->registerXPathNamespace("p725", "http://www.fleetboard.com/data");
$session_id = $soap->xpath("//p725:loginresponse/#sessionid");
echo $session_id[0];