Question : Web service help

I'm new to php and i need some help connecting and getting data from a web service. I tried to simply use.


$client = new SoapClient("https://apps.astate.edu/webservice/authentication/l");


but it keeps giving me this error.
Warning: SoapClient::__construct() [function.SoapClient---construct]:




This is the information i have on it

TESTING
-------
KEY IS REQUIRED for testing
u = test
p = text string
 
https://apps.astate.edu/webservice/authentication/?k=...&u=test&p=test
 
 
KEY FILES
---------
XSD = https://apps.astate.edu/webservice/authentication/authentication-schema.xsd
XSL = https://apps.astate.edu/webservice/authentication/authentication.xsl
 
 
XML SCHEMA FORMAT
 
<?xml version="1.0" encoding="UTF-8" ?>
<?xml-stylesheet href="authentication.xsl" type="text/xsl" ?>
<authentication xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
                xsi:noNamespaceSchemaLocation="authentication-schema.xsd">
                <STATUS>BOOLEAN</STATUS>
                <CWID>999999999</CWID>
                <FIRSTNAME>FIRSTNAME</FIRSTNAME>
                <LASTNAME>LASTNAME</LASTNAME>
</authentication>

Answer : Web service help

The problem is that it should return a WSDL document similar to:

http://www.webservicex.net/globalweather.asmx?WSDL

Which it is not.  Are you sure you have the correct uri for the call?