How to write such code natively without a template engine?

Question

PHP

Hello everyone, I'm learning PHP and I need to implement MVC, I'll deal with the controller and model myself, but I'm interested in this.
How to write such code as in TWIG'e, but natively in PHP?

{% if isAdmin %}
   <div>Привет админ, пора за работу!</div>
{% else %}
  <div>Приветствую пользователь!</div>
{% endif %}

Do not offer something like this:

echo '<div class="block"></div>';
$block = <<< EOF
   <div class="block"></div>
EOF;

Answer 1

<?if ($isAdmin === true) : ?>
   <div>Привет админ, пора за работу!</div>
<?else : ?>
  <div>Приветствую пользователь!</div>
<?endif?>

Answer 2

И вместо <?php echo $var; ?> используйте <?=$var?>