Perl Client, PHP Server, passing arrays or hashes

Hello,

I'm attempting to pass a hash or an array from a perl client to a php
server, and I can't get it to work,  I keep getting the error:

> Fault returned from XML RPC Server, fault code 3: 
> Incorrect parameters passed to method: Wanted , got  at param )

I'm using the Frontier-rpc Perl module,  I'm pretty sure that I have the
method signature correct, I can change it to pass strings and it works,
but if I try to pass arrays or hashes I get errors.  

I don't know what I'm doing wrong, if somebody could point it out that
would be great.  Here are my two files:

--Client------------------------------------------------------
#!/usr/bin/perl
use Frontier::Client;

# Make an object to represent the XML-RPC server.
$server_url = 'http://localhost/rpcd.php';
$server = Frontier::Client->new(url => $server_url);
    
#%test = ( name => 'bob', age => '15' ); 
@test = ( 'one','two','three','four');
#$test = "yoyoyo";

# Call the remote server and get our result.
$result = $server->call('aptnet.register_client', @test);
print $result->{'output'} ."\n";

--Server------------------------------------------------------

<?php
include_once "xmlrpc/xmlrpc.inc";
include_once "xmlrpc/xmlrpcs.inc";

function register_client($params){
	// Get the structure of values passed
	$ve=var_export($params,true);

        // Build our response.
        $struct = array('output' => new xmlrpcval($ve));
        return new xmlrpcresp(new xmlrpcval($struct, $xmlrpcStruct));
}

$register_client_sig=array(array($xmlrpcStruct,$xmlrpcArray));
$register_client_doc='Registration Function';

$s=new xmlrpc_server( array( 
	"aptnet.register_client" => array(
	 "function" => "register_client",
         "signature" => $register_client_sig,
         "docstring" => $register_client_doc
	)
));
?>
    
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