PHP SoapClient call function from Java WebService

$wsdlURL = '';
$client = new SoapClient($wsdlURL);
$obj = new stdClass();
$obj->name = 'huypv';

# $obj = array();
# $obj['name'] = 'huypv';

$result = $client->__soapCall('getSingerInformation', $obj);

var_dump($result);
var_dump($result->returnSingerInformation->songList);


# Detail Example
<?php
    $client = new SoapClient('http://www.webservicex.net/CurrencyConvertor.asmx?WSDL');
    #var_dump($client->__getFunctions());
   
    $obj = array();
    $obj['FromCurrency'] = 'USD';
    $obj['ToCurrency'] = 'VND';
    $args = array($obj);
   
    $result = $client->__soapCall('ConversionRate', $args);
    echo '1' . $obj['FromCurrency']  . ' =  ' . number_format($result->ConversionRateResult) . $obj['ToCurrency'];