问如何从PHP访问OPENERP方法？

EN

<?php

public function call_openerp_func($model, $function, $ids) {

    $client = new xmlrpc_client($this->server . "object");

    $id_val = array();
    $count = 0;
    foreach ($ids as $id) {
        $id_val[$count++] = new xmlrpcval($id, "int");
    }



    $this->msg = new xmlrpcmsg('execute');
    $this->msg->addParam(new xmlrpcval($this->database, "string"));
    $this->msg->addParam(new xmlrpcval($this->id, "int"));
    $this->msg->addParam(new xmlrpcval($this->password, "string"));
    $this->msg->addParam(new xmlrpcval($model, "string"));
    $this->msg->addParam(new xmlrpcval($function, "string"));
    $this->msg->addParam(new xmlrpcval($id_val, "array"));
    //////         
     */
    // Functions return values
    $this->res = &$this->client->send($this->msg);
    if ($this->res->faultCode()) {
        return 'Error: ' . $resp->faultString();
    } else {
        $res = $this->res->value();
        return $res;
    }
}
 ?>

<?php
  // sample for calling function to validate invoice payment
   $validate_voucher_payment = $kengen_model->call_function_func('account.voucher', 
      'button_proforma_voucher', array(8));  
?>