custom product using php code

-- HikaShop version -- : 2.6.4
-- Joomla version -- : 3.6.1
-- PHP version -- : 5.5.8

Hi
I use a menu item that return a list of products define by listing_img_title.php with div
when i go to the php code to see how is concat the url i have

	<span class="hikashop_product_name">
		<?php if($this->params->get('link_to_product_page',1)){ ?>
			<a href="<?php echo $link;?>">
		<?php }
			echo $this->row->product_name;
		if($this->params->get('link_to_product_page',1)){ ?>
			</a>
		<?php } ?>
	</span>

Hi

The itemid here is for testing so i create it manually using the hikashop GUI interface to compare the result of the hikashop team code .
Is there a way to change the code source to have itemid without explicit create it ( use only code php ) ?

Thank's