NUSOAP serialization problem with soapval and WSDL

[Stefan Reimers <php@stefan-reimers.de>]

Hi,

I am currently using NuSOAP (0.6.9) with PHP4 for some basic Web 
Services using WSDL functions.
I have some trouble with returning arrays:

My array looks like that:

Array
(
    [0] => 52062
    [1] => 52064
    [2] => 52066
    [3] => 52068
    [4] => 52070
    [5] => 52072
    [6] => 52074
    [7] => 52076
    [8] => 52078
    [9] => 52080
)

To return this I created a soapval:

	$datatype = new soapval("zipcodes","array",$zipcodes);
	return $datatype;

Executing the Web Service gives me the following error array:

Array
(
    [faultcode] => Server
    [faultactor] =>
    [faultstring] => unable to serialize result
    [detail] => Array
        (
            [soapVal] =>
        )

)

I tried to implement some workarounds, but they were neither an elegant 
nor a functionally satisfying solution:

1. I did not use soapval but serialized the array by hand. This works 
fine but the user of the Web Service then has to unserialize himself. 
Not good...

2. I disabled WSDL.

Instead of

$soap->register("city2zip",
				array("city"=>"xsd:string"),
				array("zipcodes"=>"xsd:array"),
				"http://soapinterop.org/";);

I then used

$soap->register("city2zip");

which also works fine but then the Web Service is without description.


I read in the NuSOAP documentation that soapval is used when there is no 
WSDL. But I do not know how to describe the return array for the WSDL 
version of my code, so that I do not have to serialize myself.
Does anyone know this problem??

Thx in advance
Stefan Reimers

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