Custom product loop excluding values with same name

Hello, I need to hide products with same title from WooCommerce shop page so i created a loop which is working and does hide products with same name but i have a problem.

If i set posts_per_page=8 it shows less because it counts the hidden products also.

<?php
$args = array('post_type'=>'product','posts_per_page'=>8);
$query =new WP_Query($args);
$list = array();

while($query->have_posts()): $query->the_post();if(in_array(get_the_title(), $list)){continue;}
$list[]= get_the_title();?>

<li><?php wc_get_template_part('content','product');?></li>

<?php endwhile;
wp_reset_postdata();
?>

Code (markup):

Any ideas?

 

You probably should't try to do this. there, corrected

... and people wonder why I say WP's built in database wrapping is 3i -- ignorant, incompetent, and inept. It just teaches people how NOT to do things.