Woocommerce product ID in url - wordpress

Question

I'm looking for a way to put a Woocommerce product ID in a URL, e.g.:
domain.com/product-category/id/product-title
The ID is the product's post ID, e.g. "12092". Automatically created by WooCommerce in Wordpress.
Can this be done in a way? Either easily through the Wordpress permalinks settings or in a different way through hacking my way into the files.
This nearly works:
<?php
add_filter('post_type_link', 'wpse33551_post_type_link', 1, 3);
function wpse33551_post_type_link( $link, $post = 0 ){
if ( $post->post_type == 'product' ){
return home_url( 'p/' . $post->ID );
} else {
return $link;
}
}
add_action( 'init', 'wpse33551_rewrites_init' );
function wpse33551_rewrites_init(){
add_rewrite_rule(
'product/([0-9]+)?$',
'index.php?post_type=product&p=$matches[1]',
'top' );
}
?>
But the output is:
domain.com/p/45
I'd like it to be:
domain.com/p/45/title-of-the-post
Thanks!

Answer 1

Why so complicated? Go to settings -> permalinks and click "Shop based URL" and save. Now you can see that the permalink structure in the "Custom structure". It should looks like this now:
/shop/%product_cat%/
Now add the post_id to the permalink setting like this:
/shop/%product_cat%/%post_id%/
Save it and go ahead.

Answer 2

You can use $post->post_name to get the slug.
Use a more permissive regular expression to accept any url that ends with /p/[id][anything]
<?php
add_filter('post_type_link', 'wpse33551_post_type_link', 1, 3);
function wpse33551_post_type_link( $link, $post = 0 ){
if ( $post->post_type != 'product' )
return $link;
return home_url( 'p/' . $post->ID . '/' . $post->post_name );
}
add_action( 'init', 'wpse33551_rewrites_init' );
function wpse33551_rewrites_init(){
add_rewrite_rule(
'p/([0-9]+)?.*?$',
'index.php?post_type=product&p=$matches[1]',
'top'
);
}
?>
You might need to 'reset' your permalinks in the settings menu for WordPress to accept the new rule.