Get the id of a WooCommerce product category by its name or slug

Question

I have a wp template that I would like to assign to some pages. The template would ie. display all WooCommerce products that have the same master category name as the pages name itself.

By far I have tried using this code, but with no good output:

$idObj = get_category_by_slug($pagename);
$id = $idObj->term_id;
echo ": ". $id;

Unfortunately, the echo does not display anything.
Echoing $pagename works, and returns me the slug of the page.

Any good way I could make this work?

Answer 1

With a custom taxonomy is recommended to use get_term_by() instead :

$category = get_term_by( 'slug', $pagename, 'product_cat' );
$cat_id = $category->term_id

Reference: Get category ID from term slug…

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To get a product category ID from term name, use:

$category = get_term_by( 'name', $pagename, 'product_cat' );
$cat_id = $category->term_id