Web services

I am trying to create a soap communication between moodle and iphone. The question I want to ask is if i can get a response from moodle based an my wsdl.

For example moodle replies:
body:
<?xml version="1.0" encoding="UTF-8"?>
<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:ns1="http://192.168.1.121/workspace/moodle/webservice/soap/server.php?wstoken=" xmlns:ns2="http://xml.apache.org/xml-soap" xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"><SOAP-ENV:Body><ns1:moodle_user_get_users_by_usernameResponse><return SOAP-ENC:arrayType="ns2:Map[1]" xsi:type="SOAP-ENC:Array"><item xsi:type="ns2:Map"><item><key xsi:type="xsd:string">id</key><value xsi:type="xsd:float">3</value></item><item><key xsi:type="xsd:string">username</key><value xsi:type="xsd:string">kspiros2000</value></item><item><key xsi:type="xsd:string">firstname</key><value xsi:type="xsd:string">Spyros</value></item><item><key xsi:type="xsd:string">lastname</key><value xsi:type="xsd:string">karavanis</value></item><item><key xsi:type="xsd:string">email</key><value xsi:type="xsd:string">kspiros2000@hotmail.com</value></item><item><key xsi:type="xsd:string">auth</key><value xsi:type="xsd:string">manual</value></item><item><key xsi:type="xsd:string">confirmed</key><value xsi:type="xsd:float">1</value></item><item><key xsi:type="xsd:string">idnumber</key><value xsi:type="xsd:string"></value></item><item><key xsi:type="xsd:string">emailstop</key><value xsi:type="xsd:float">0</value></item><item><key xsi:type="xsd:string">lang</key><value xsi:type="xsd:string">en</value></item><item><key xsi:type="xsd:string">theme</key><value xsi:type="xsd:string"></value></item><item><key xsi:type="xsd:string">timezone</key><value xsi:type="xsd:string">99</value></item><item><key xsi:type="xsd:string">mailformat</key><value xsi:type="xsd:int">1</value></item><item><key xsi:type="xsd:string">description</key><value xsi:type="xsd:string"></value></item><item><key xsi:type="xsd:string">city</key><value xsi:type="xsd:string">salamina</value></item><item><key xsi:type="xsd:string">country</key><value xsi:type="xsd:string">GR</value></item></item></return></ns1:moodle_user_get_users_by_usernameResponse></SOAP-ENV:Body></SOAP-ENV:Envelope>



I want a reply with document literal encoding
for example something like that:

body :
<?xml version="1.0" encoding="UTF-8"?>
<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:ns1="http://192.168.1.121/workspace/moodle/"><SOAP-ENV:Body><ns1:moodle_user_get_users_by_username><ns1:username>kspiros2000</ns1:username></ns1:moodle_user_get_users_by_username></SOAP-ENV:Body></SOAP-ENV:Envelope>


How can I change the response encoding? In the request I do not have a problem because I cast it to object for example:

$params = self::validate_parameters(self::create_users_parameters(), array('users'=&gt;(array)$users));