wp exclude category from postmeta

wp-exclude-category-from-postmeta.php

/**
 * hide 'for parents' and 'featured' categories in list of cats in post's postmeta 
 */
function ca_response_exclude_category_from_postmeta( $categories ) {
    $exclude = array( 'featured','for-parents' );
    foreach ( $categories as $index => $category ){
        if ( in_array( $category->slug, $exclude ) ){
            unset( $categories[ $index ] );
        }
    }
    $categories = array_values( $categories );
    return $categories;
}
add_filter( 'get_the_categories', 'ca_response_exclude_category_from_postmeta' );