PHP Count

I’m going based on modifying whatever code produced this screenshot, since it essentially did 12345678910111213:
https://imgim.com/292inciw7895190.jpg

this table is woocommerce admin new order mail.

https://imgim.com/9385incih2142354.jpg

i want to give sequence number for each products.

———————-
1 |
———————-
2 |
———————-
3 |
———————-
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this is my table codes.

<?php
/**
 * Email Order Items
 *
 * @author 		WooThemes
 * @package 	WooCommerce/Templates/Emails
 * @version     2.1.2
 */

if ( ! defined( 'ABSPATH' ) ) {
	exit; // Exit if accessed directly
}

foreach ( $items as $item_id => $item ) :
	$_product     = apply_filters( 'woocommerce_order_item_product', $order->get_product_from_item( $item ), $item );
	$item_meta    = new WC_Order_Item_Meta( $item['item_meta'], $_product );
	?>
	<tr>

	<td style="text-align:left; vertical-align:middle; border: 1px solid #eee;">

<<<<<<<<<<<<<<<<< SHOULD BE HERE >>>>>>>>>>>>>>>>>>>>><

	</td>

	<td style="text-align:left; vertical-align:middle; border: 1px solid #eee;"><?php echo $item['qty'] ;?></td>

	<td style="text-align:left; vertical-align:middle; border: 1px solid #eee;">

	<?php

            echo $_product->list_attributes();
         ?> 

	</td>

	<td style="text-align:left; vertical-align:middle; border: 1px solid #eee;">

	<?php echo ' #' . $_product->id . '';  ?>

	</td>

<td style="text-align:left; vertical-align:middle; border: 1px solid #eee; word-wrap:break-word;"><?php

			// Product name
			echo apply_filters( 'woocommerce_order_item_name', $item['name'], $item );
                     ?>
		</td>

<td class="product-price">

						<?php
							echo apply_filters( 'woocommerce_cart_item_price', WC()->cart->get_product_price( $_product ), $cart_item, $cart_item_key );
						?>
					</td>

		<td style="text-align:left; vertical-align:middle; border: 1px solid #eee;"><?php echo $order->get_formatted_line_subtotal( $item ); ?></td>

	</tr>

<?php
/**
 * Email Order Items
 *
 * @author 		WooThemes
 * @package 	WooCommerce/Templates/Emails
 * @version     2.1.2
 */

if ( ! defined( 'ABSPATH' ) ) {
	exit; // Exit if accessed directly
}

$sira = 0;

foreach ( $items as $item_id => $item ) :
	$_product     = apply_filters( 'woocommerce_order_item_product', $order->get_product_from_item( $item ), $item );
	$item_meta    = new WC_Order_Item_Meta( $item['item_meta'], $_product );
	?>
	<tr>

	<td style="text-align:left; vertical-align:middle; border: 1px solid #eee;">

<?php echo ++$sira; ?>

	</td>

	<td style="text-align:left; vertical-align:middle; border: 1px solid #eee;"><?php echo $item['qty'] ;?></td>

	<td style="text-align:left; vertical-align:middle; border: 1px solid #eee;">

	<?php

            echo $_product->list_attributes();
         ?> 

	</td>

	<td style="text-align:left; vertical-align:middle; border: 1px solid #eee;">

	<?php echo ' #' . $_product->id . '';  ?>

	</td>

<td style="text-align:left; vertical-align:middle; border: 1px solid #eee; word-wrap:break-word;"><?php

			// Product name
			echo apply_filters( 'woocommerce_order_item_name', $item['name'], $item );
                     ?>
		</td>

<td class="product-price">

						<?php
							echo apply_filters( 'woocommerce_cart_item_price', WC()->cart->get_product_price( $_product ), $cart_item, $cart_item_key );
						?>
					</td>

		<td style="text-align:left; vertical-align:middle; border: 1px solid #eee;"><?php echo $order->get_formatted_line_subtotal( $item ); ?></td>

	</tr>

Thank you so much for all answers . Especially ” csloisel ” thank you.

finally ??

https://imgim.com/8363inciv6780692.jpg

Problem SOLVED