thankyou.php

<?php $present = false; ?>
<?php foreach( $order->get_items() as $item ):  
	$_product = wc_get_product( $item['product_id'] );
         // Add whatever product id you want below here
        if ( $item['product_id'] == 643 ):  
                $present = true; ?>
					
<?php endif; endforeach; ?>

<?php if( $present ): ?>

	<p class="woocommerce-notice woocommerce-notice--success woocommerce-thankyou-order-received"><?php echo apply_filters( 'woocommerce_thankyou_order_received_text', __( 'Thank you for buying this shirt', 'woocommerce' ), $order ); ?></p>
<?php else: ?>

	<p class="woocommerce-notice woocommerce-notice--success woocommerce-thankyou-order-received"><?php echo apply_filters( 'woocommerce_thankyou_order_received_text', __( 'Thank you. Your order has been received.', 'woocommerce' ), $order ); ?></p>
<?php endif; ?>

Hi i need this for multipe products please