public function categoryList() 
{     $soapClient = new SoapClient('http://dev.gittigidiyor.com:8080/listingapi/ws/CategoryService?wsdl', 
array('trace' => 1, 'exceptions' => false, 'login' => 'user', 'password' => 'pass', 'authentication' => SOAP_AUTHENTICATION_BASIC)); 
    $soapParams = [
         'startOffSet' => '0',
         'rowCount' => '100',
         'withSpecs' => false,
         'withDeepest' => true,
         'withCatalog' => true, 
        'lang' => 'tr'     ];
try { 
        $result = $soapClient->__soapCall('getCategories',$soapParams); 
        echo $soapClient->__getLastRequest(); 
        print_r($result); 
        return $result; 
  } catch (Exception $e){
         throw new Exception("Soup Request Failed! Response:n".$soapClient->__getLastResponse()); 
  } 
}