Webservice SOAP

Modelo: models/services/consulta_service.php

<?php
class ConsultaService {

    public function getClientes(){
        $lst = new Cliente();
        $lst = $lst->find();
        $strSync = "";        

        $strSync = "<?xml version='1.0' encoding='UTF-8'?>";
        $strSync .= "<clientes>";
        foreach($lst as $cli){

            $strSync .="<cliente>";
            $strSync .="<id>" . $cli->id . "</id>";            
            $strSync .="<codigo>" . $cli->codigo . "</codigo>";
            $strSync .="<cedula>" . $cli->cedula . "</cedula>";
            $strSync .="<nombre>" . $cli->nombre . "</nombre>";
            $strSync .="<apellido>" . $cli->apellido . "</apellido>";
            $strSync .="<cumple>" . $cli->fecha_de_nacimiento . "</cumple>";            
            $strSync .="<direccion>" . $cli->direccion . "</direccion>";
            $strSync .="<telefono>" . $cli->telefono . "</telefono>";            
            $strSync .="</cliente>";
        }
        $strSync .= "</clientes>";

        return $strSync;
     }

     public function modClientes($xmlInput) {
        $c = new Cliente();
        $actualizable = true;

        $xml= simplexml_load_string($xmlInput);

        foreach ($xml as $objxml){
           $element = $objxml;
            
           $c->codigo = $element->codigo;
           $c->cedula = $element->cedula;
           $c->nombre = $element->nombre;
           $c->apellido = $element->apellido;
           $c->direccion = $element->direccion;
           $c->telefono = $element->telefono;

           if($c->save()) {
           
           }else { 
               return false;
           }
        }

        return true;
    }
}

Controlador: controllers/consulta_service_controller.php

<?php

class ConsultaServiceController extends ApplicationController {

    public $template = '';
    public $models = array('ciudad','cliente');

    public function impl() {

        Load::models("services/consulta_service");
        ini_set("soap.wsdl_cache_enabled", "0");//Para no tener cache en desarrollo
        $server = new SoapServer(null,array('uri' => "http://localhost/kumbia/miapp/consulta_service/impl/"));
	$server->setClass("ConsultaService");
	ob_end_clean();
	$server->handle();

        exit;
    }

    public function index() {
        $this->render(null);
    }

}

?>

Cliente del webservice, en cualquier vista:

<?php

$client = new SoapClient(null, array('location' => "hhttp://localhost/kumbia/miapp/consulta_service/impl/",'uri' => "http://test-uri/"));

print($client->getClientes());

?>

.