Display Custom Fields according to Category - if-statement

Question

I added Custom Fields to my WooCommerce Single Product Page, with this Code:
// DISPLAY CUSTOM FIELDS IN WOOCOMMERCE SINGLE PRODUCT PAGE
add_action('woocommerce_single_product_summary', 'wpsh_single_posts_custom_meta_fields', 10 );
function wpsh_single_posts_custom_meta_fields(){
$post_id = get_the_ID();
$post = get_post( $post_id );
$month_year = get_post_meta( $post->ID, 'month_year' ); // Date field
$art_size = get_post_meta( $post->ID, 'art_size' ); // Text field
// Date field
if(!empty($month_year)){
echo '<p class="creation-year"><span style="font-weight: bold; color: #4cbb17;">PRODUCT YEAR</span>: ' . $month_year[0] . '</p>';
}
// Text field
if(!empty($art_size)){
echo '<p class="art-dimension"> <span style="font-weight: bold; color: #4cbb17;">ART SIZE</span>: ' . $art_size[0] . '</p>';
}
echo '</p>';
}
--- and it gave me this result: https://snipboard.io/dVOLKv.jpg
But two things are missing from my Code and I don't know how to add them:
1.) Show those Custom Fields according to Category.Meaning that, show:
a.) ART SIZE and PRODUCT YEAR if Category is equal to Artworks.
b.) CRT PRICE and PRODUCT YEAR if Category is Equal to Bags.
c.) CRAFT SIZE, MATERIAL and WEIGHT if Category is Equal to Crafts.
2.) Hide Custom Fields if value is equal to Null. Meaning that, if these fields are not filled in, with a value, they should not appear.
How do I add these extra rules to my Code above?
Or, can anyone help me with a better Code that could be more flexible than the one I already have?
Regards.

Answer 1

You can use get_the_terms() to get the category list then filter out based on category id what to display.
Try out this sample code and replace the category id.
add_action('woocommerce_single_product_summary', 'wpsh_single_posts_custom_meta_fields', 10);
function wpsh_single_posts_custom_meta_fields()
{
$post_id = get_the_ID();
$post = get_post($post_id);
$month_year = get_post_meta($post->ID, 'month_year', true); // Date field
$art_size = get_post_meta($post->ID, 'art_size', true); // Text field
$term_obj_list = get_the_terms( $post->ID, 'product_cat' );
if(is_array($term_obj_list)){
foreach($term_obj_list as $term){
if($term->term_id == 22){ //here 22 is your category id
if ($month_year && !empty($month_year)) {
echo '<p class="creation-year"><span style="font-weight: bold; color: #4cbb17;">PRODUCT YEAR</span>: ' . $month_year . '</p>';
}
if ($art_size && !empty($art_size)) {
echo '<p class="art-dimension"> <span style="font-weight: bold; color: #4cbb17;">ART SIZE</span>: ' . $art_size . '</p>';
}
}
}
}
}