Devolución Total

Ejemplo:

<?php
ini_set("display_errors", 1);
$end_point = "https://sandbox.decidir.com/services/t/1.1/Authorize.AuthorizeHttpSoap12Endpoint";
$wsdl = "https://sandbox.decidir.com/services/t/1.1/Authorize?wsdl";

$http_header = 'Authorization: PRISMA RV82RVHO5T0O5CZUUTX2FLHU';

$headers = array(
  'http'=>array(
    'header'=>$http_header)
);

$contexto = stream_context_create($headers);

$array_de_datos = array(
    "Merchant"=>"12345678",
    "EncodingMethod"=>"XML",
    "Security"=>"PRISMA RV82RVHO5T0O5CZUUTX2FLHU",
    "Operation"=>"Devolución",
    "Payload"=>"
    <Request>
    <NROCOMERCIO>12345678</NROCOMERCIO>
    <NROOPERACION>9238742988</NROOPERACION>
    </Request>"
    );

$soap_client = new SoapClient($wsdl, array(
    'stream_context'=>$contexto,
    'location'=>$end_point,    
    ));

$rta = $soap_client->Execute($array_de_datos);
echo "<br />";
print_r($rta);

Respuesta:

stdClass Object ( 
    [StatusCode] => -1 
    [StatusMessage] => Devolución aceptada 
    [AuthorizationKey] => 81E1ADFC0151ED49731440792096772 
    [EncodingMethod] => XML 
    [Payload] => stdClass Object ( 
        [Answer] => stdClass Object ( 
            [IDMOTIVO] => 0 
            [RESULTADO] => APROBADA 
            [FECHAHORA] => 2015/08/28 17:01:36 
        ) 
    )
)