Hướng dẫn hiển thị sản phẩm đã xem trong Woocommerce

<?php 
global $woocommerce;
$viewed_products = ! empty( $_COOKIE['woocommerce_recently_viewed'] ) ? (array) explode( '|', $_COOKIE['woocommerce_recently_viewed'] ) : array();
$viewed_products = array_filter( array_map( 'absint', $viewed_products ) );
?>
<?php 
$query_args = array(
	'posts_per_page' => 5, // Hiển thị số lượng sản phẩm đã xem
	'post_status'    => 'publish', 
	'post_type'      => 'product', 
	'post__in'       => $viewed_products, 
	'orderby'        => 'rand'
);
$query_args['meta_query'] = array();
$query_args['meta_query'][] = $woocommerce->query->stock_status_meta_query();
$r = new WP_Query($query_args);
if ( $r->have_posts() ) {
	?>
	<div class="giniit-title"> 
		<h2>SẢN PHẨM VỪA XEM</h2>  
	</div>
	<?php 
	while ( $r->have_posts() ) { $r->the_post();
		get_template_part( 'template-parts/content', get_post_type() ); // Giao diện hiển thị theo ý bạn muốn
	}
}; 
wp_reset_postdata();
?>

function giniit_track_product_view() {
	if ( ! is_singular( 'product' ) ) {
		return;
	}
	global $post;
	if ( empty( $_COOKIE['woocommerce_recently_viewed'] ) )
		$viewed_products = array();
	else
		$viewed_products = (array) explode( '|', $_COOKIE['woocommerce_recently_viewed'] );
	if ( ! in_array( $post->ID, $viewed_products ) ) {
		$viewed_products[] = $post->ID;
	}
	if ( sizeof( $viewed_products ) > 15 ) {
		array_shift( $viewed_products );
	}
	wc_setcookie( 'woocommerce_recently_viewed', implode( '|', $viewed_products ) );
}
add_action( 'template_redirect', 'giniit_track_product_view', 20 );