Do something if order has subscription product in it

if_sub_in_order.php

<?php

$order = wc_get_order( $order_id );

$sub_in_order = false;

$items = $order->get_items(); 

foreach ( $items as $item ) {
  
  $product_id = $item['product_id'];
  
  if ( has_term( 'subscription', 'product_type', $product_id ) || has_term( 'variable-subscription', 'product_type', $product_id ) ) {
    $sub_in_order = true;
    break;
  }
  
}

if ( $sub_in_order ) {
  
  // DO THINGS
  
}