Output a list of taxonomy terms, then highlight the terms the belong to the current post. #snippet #WordPress #woocommerce

single-product.php

<?php 
	$terms = get_the_terms( $post->ID, 'product_cat' );
	if ( !empty( $terms ) ){
		// get the first term
		$term = array_shift( $terms );
		$slugofpost = $term->slug;
	}
	?>

	<style>
		.shop-top-categories-menu .<?php echo $slugofpost; ?> {
		background: #F2F2F2;
	}	
		.shop-top-categories-menu .<?php echo $slugofpost; ?> a{
		text-decoration: underline;
		font-weight:bolder;
	}
	</style>


	<?php
		$tags = get_terms('product_cat', array(
			'parent' => get_term_by('slug', $parent_term, $taxonomy)->term_id,
			'hierarchical' => false,
			'hide_empty' => 1,
			'exclude' => 15, // excluding the 'uncategorized' category
	));
		$post_tags = wp_get_post_terms($post->ID,'product_cat',array('fields' => 'slugs'));
	?>

		<?php foreach( $tags as $tag ): ?>
			<li class="<?php echo $tag->slug; ?> button d-inline-block text px-3 top-category-menu-item d-inline-flex">
				<a href="<?php echo site_url().'/product-category/'.$tag->slug;?>" class="align-self-center"><?php echo $tag->name ?></a>
		</li>
		<?php endforeach; 
		wp_reset_query();
		?>