consuming web service (for the first time) in php

It took me a while to get soap configured in php. Now I'm just trying to learn about it. I'm using the web service here to learn:

http://www.webservicex.net/WCF/ServiceDetails.aspx?SID=19

It says the WSDL is here:

http://www.webservicex.net/stockquote.asmx?wsdl

and this is my code:

$client = new SoapClient('http://www.webservicex.net/stockquote.asmx?wsdl');
$result = $client->getQuote("AAPL");
echo $result;

I'm getting an error saying "Object of class stdClass could not be converted to string". Now I realize that $result is an object, and I'm wondering how do I access data that the server populated? I tried to understand the WSDL but I'm getting nowhere. Is it supposed to b开发者_如何学编程e something like:

$result->price

? (That doesn't work by the way...)

Ideas?

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1. When curious about datatypes from the soapserver, use the SoapClient->__getTypes() & SoapClient->__getFunctions() methods
2. If you return is still not clear, var_dump() your return and examine it.