Variable Block values in yii\widgets\Block

Yii 2.0 General Discussions
1

I am trying to use the less used feature yii\widgets\Block
It works as documented, but may be advantageous to have variable substitution. In the example below, when the block is called, it does not display the updated variable value. Anyway to achieve that?

<?php
$sbvar = 1;
?>

<?php $this->beginBlock('myblock') ?>
    <div class="row">
            <div class="col-md-4">
                Hello <?= $sbvar ?>
            </div>

            <div class="col-md-4">
                Fellow
            </div>
            <div class="col-md-4">
                Mellow
            </div>
    </div>
<?php $this->endBlock() ?>


<?= $this->blocks['myblock'] ?>
<?php $sbvar++; ?>
<?= $this->blocks['myblock'] ?>
<?php $sbvar++; ?>
<?= $this->blocks['myblock'] ?>