Scientific web-services

Here are two examples of my web-services powered by NuSOAP

The first one returns the ISI Impact factor of a scientific journal

The second one returns the details of the journal

Request

POST /ws/ifs.php HTTP/1.0
User-Agent: NuSOAP/0.6.7 (1.75)
Host: www.diagnosticarea.com
Content-Type: text/xml; charset=ISO-8859-1
SOAPAction: "urn:NeuromorfJournals/ScientificJournals#getIFR"
Content-Length: 572

<?xml version="1.0" encoding="ISO-8859-1"?><SOAP-ENV:Envelope SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/" xmlns:si="http://soapinterop.org/xsd" xmlns:tns="urn:NeuromorfJournals"><SOAP-ENV:Body><tns:getIFR xmlns:tns="urn:NeuromorfJournals"><code xsi:nil="true"/><year xsi:nil="true"/></tns:getIFR></SOAP-ENV:Body></SOAP-ENV:Envelope>

Error: Response not of type text/xml

Response

HTTP/1.1 200 OK
Date: Sat, 04 Sep 2010 15:37:49 GMT
Server: Apache
X-Powered-By: PHP/5.2.6
Vary: Accept-Encoding
Connection: close
Content-Type: text/html

<br />
<b>Catchable fatal error</b>:  Object of class soap_fault could not be converted to string in <b>/www/diagnosticarea.com/root/include/nusoap.php</b> on line <b>2689</b><br />

Here is the description of the web-service