[Wordpress] Exclude product category by slug in seach result.

wordpress-exclude-product-categories-in-search.php

<?php

function jenn_search_filter_pre_get_posts( $query ) {
   if ($query->is_search()) {
       $query->set( 'post_type', array( 'product' ) );
       $tax_query = array(
          array(
               'taxonomy' => 'product_cat',
               'field'   => 'slug',
               'terms'   => 'your-product-category-slug-1',
               'operator' => 'NOT IN',
           ),
          array(
               'taxonomy' => 'product_cat',
               'field'   => 'slug',
               'terms'   => 'your-product-category-slug-2',
               'operator' => 'NOT IN',
           ),
       );
       $query->set( 'tax_query', $tax_query );
	}
}

add_action( 'pre_get_posts', 'jenn_search_filter_pre_get_posts', 1 );


?>