Hi All,

I have a question about webserve,
I have this example here
http://www.w3schools.com/webservices...nheitToCelsius

My question:
Can anyone tell me how to receive the xml answer that is being displayed in the browser in my source code as string? (so that i can parse and extract the response value).

the result is fine but my problem is that how can i make use of it as it only displays in the browser?

thanx

Please, do not cross post your questions.
The 2 threads have been merged into a unique one.

To answer your question, in this specific case, they use SOAP to do the request.
So, you must use a client SOAP library, and configure it to use this service.

After that, it depends of what you use on the server side to process the answer.
You cross posted in both PHP and ASP forums, so, which one do you use ?

sorry for cross posting,

I use PHP or ASP javascript,
a solution a any of both languages would be fine

thanx

I'll tell you about PHP, as it's my domain.
You have to understand that SOAP abstract the XML "talk" that occurs between the server and the client.

If a method defined into the wsdl file return a string that contains the xml, it's the sole decision of the webservice maker.
In the wsdl, you can see the return type of a call, and you need to code your script in accordance.

For example, if I take the function FahrenheitToCelsius() from your wsdl, we have this

<s:element name="FahrenheitToCelsius">
    <s:complexType>
        <s:sequence>
            <s:element minOccurs="0" maxOccurs="1" name="Celsius" type="s:string"/>
        </s:sequence>
    </s:complexType>
</s:element>
<s:element name="FahrenheitToCelsiusResult">
    <s:complexType>
        <s:sequence>
            <s:element minOccurs="0" maxOccurs="1" name="FahrenheitToCelsiusResult" type="s:string"/>
        </s:sequence>
    </s:complexType>
</s:element>

This define that the method FahrenheitToCelsius() takes a sequence (array) in input with a paramter named "Farenheit" that contains a string.

The FahrenheitToCelsiusResult type is the answer from the server.
It's defined as a sequence too (so, an array) with an "Farenheit" index that contains a string with the returned value.

The php script to use this would be this one:

PHP Code:

<?php
$client = new SoapClient("http://www.w3schools.com/webservices/tempconvert.asmx?WSDL");
$answer=$client->FahrenheitToCelsius(array("Fahrenheit"=>"120"));

var_dump( $answer);
?>

and it's output would be

object(stdClass)#2 (1) {   ["FahrenheitToCelsiusResult"]=>   string(16) "48.8888888888889" }

As you see, the PHP soap client encase it into an anonymous class.

You can get the XML, as stated into the PHP documentation, by turning the "trace" flag true on the instantiation of the SOAP client

PHP Code:

<?php
$client = new SoapClient("http://www.w3schools.com/webservices/tempconvert.asmx?WSDL", array("trace"=>true));

And in that case, you can simply get the xml answer with

PHP Code:

$xml=$client->__getLastRequest(); 


This script:

PHP Code:

<?php
$client = new SoapClient("http://www.w3schools.com/webservices/tempconvert.asmx?WSDL", array("trace"=>true));
$answer=$client->FahrenheitToCelsius(array("Fahrenheit"=>"120"));

//indicate to the browser that the output is XML, and not html
header('content-type: text/xml');
print($client->__getLastRequest());

returns this:
http://webalis.com/soap.php

Two basic methods parse XML documents. One is the Document Object Model (DOM) method. When parsing an XML document with DOM, the parser reads the entire document and creates a tree-like representation of it. The second method uses SAX and parses XML documents with events. The DOM method, while sometimes easier to implement, is slower and more resource-intensive than SAX. Digester simplifies SAX parsing by providing a higher-level interface to SAX events. This interface hides much of the complexity involved in XML document navigation, allowing developers to concentrate on processing XML data instead of parsing it.

Thanx for your comments,
any clear example with asp JavaScript ? on posting xml as to url and retrieving response ?

thanx