Hide multiple child-category from displaying on category page in woocommerce

Question

I would like to hide multiple child-categories (CAT1, CAT2) from displaying on the main category page in woocommerce. I have found some code that works for this.

add_filter( 'get_terms', 'exclude_category', 10, 3 );
function exclude_category( $terms, $taxonomies, $args ) {
    $new_terms = array();
    if ( is_product_category() ){
        foreach ( $terms as $key => $term ) {
            if( is_object ( $term ) ) {
                if ( 'CAT1' == $term->slug && $term->taxonomy = 'product_cat' ) {
                    unset($terms[$key]);
                }
                elseif ( 'CAT2' == $term->slug && $term->taxonomy = 'product_cat' ) {
                    unset($terms[$key]);
                }
            }
        }
    }
    return $terms;
}

But the only way it works if I create a new "elseif" line for every category that i want to hide. Is there a way to chain these two together?

            if ( 'CAT1' == $term->slug && $term->taxonomy = 'product_cat' ) {
                unset($terms[$key]);
            }
            elseif ( 'CAT2' == $term->slug && $term->taxonomy = 'product_cat' ) {
                unset($terms[$key]);
            }

Answer 1

Yes, you can use in_array(), store terms you want to unset in $exclude_terms and pass that in in_array($term->slug, $exclude_terms). Here is the complete code:

add_filter( 'get_terms', 'exclude_category', 10, 3 );
function exclude_category( $terms, $taxonomies, $args ) {
    $exclude_terms = array('CAT1', 'CAT2', 'CAT3');

    if ( is_product_category() ){
        foreach ( $terms as $key => $term ) {
            if( is_object ( $term ) ) {
                if ( in_array($term->slug, $exclude_terms) && $term->taxonomy = 'product_cat' ) {
                    unset($terms[$key]);
                }
            }
        }
    }
    return $terms;
}