Product Loop

function product_custom_loop(){
        ob_start();
        
         $args = array(
            'post_type' => ' product',
            'posts_per_page' => 6,
        ); 
    
        $results = new WP_Query($args);
        // echo '<pre>';
        // var_dump($atts['category']);
        ?>
<section id="home">
     
        
            <div class="container-fluid">
             
                    <div class="row ser-content product-slider">
                        <?php
                            if($results->have_posts()):
                                while($results->have_posts()):
                                    $results->the_post();
                                    global $product;
                                    // $categories = get_the_terms(get_the_ID(), 'product_cat');
                            ?>
                        <div class="col-md-4">
                           <div class="product_col">
                            <div class="product_inner">
                                <div class="product_top">
                        			<a class="prCart" href="<?php echo esc_url( get_site_url() . '/cart/?add-to-cart=' . $product->get_id() ); ?>"><span class="list-icon wd-icon fas fa-shopping-bag"></span></a>
                                    <div class="price_product">
                                    <?php 
                            			  if ($product->is_type( 'simple' )) { ?>
                            			<?php echo $product->get_price_html(); ?>
                            			<?php } ?>
                            			<?php 
                                		  if($product->get_type()=='variable') {
                                		      $available_variations = $product->get_available_variations();
                                		      $variation_id=$available_variations[0]['variation_id'];
                                		      $variable_product1= new WC_Product_Variation( $variation_id );
                                		      $regular_price = $variable_product1 ->regular_price;
                                		      $sales_price = $variable_product1 -> sale_price;
                                		      if (empty($sales_price)) {
                                		      $sales_price = 0;
                                		        }
                                		      }
                            			  ?>
                                </div>
                			    </div>
                                <div class="product_img">
                                    <?php the_post_thumbnail('full'); ?>
                                </div>
                                <div class="product_title">
                                    <h4><?php echo esc_html(get_the_title()); ?></h4>
                                </div>
                            </div>
                        </div>
                        </div>
                        <?php
                            endwhile;
                            endif;
                            ?>
                    </div>
                
            </div>
         
     
</section>

<?php
    wp_reset_postdata();
    return ob_get_clean();
    }
add_shortcode('wp-product','product_custom_loop');