get node title

[pingevt]

need something like this in the display title module

function b_get_node_title($node) {

  if ( $node->hasField('field_display_title')) {
    // Title.
    $title = $node->label();
    $display_title = $node->field_display_title->getValue();

    if (!empty($display_title)) {
      $display_title = current($display_title);
      $title = preg_replace("/<\\/?p(.|\\s)*?>/", "", $display_title['value']);
      $title = Markup::create($title);
    }
  }

  return $title;
}