PaymentForm

 <?php
                    $liqpay = new \common\components\liqpay\Liqpay();
                    echo $liqpay->cnb_form(array(
                        'action' => 'pay',
                        'amount' => $model->cost,
                        'currency' => 'UAH',
                        'description' => 'Оплата в сейф от заказчика',
                        'order_id' => $model->id,
                        'version' => '3'
                    ));
                    ?>