WooCommerce Search Products by Category Dropdown

woocommerce-search-products-by-category-dropdown.php

<form name="myform" method="GET" action="<?php echo esc_url(home_url('/'));?>">

  <?php if (class_exists('WooCommerce')): ?>
  <?php
  if (isset($_REQUEST['product_cat']) && !empty($_REQUEST['product_cat'])) {
      $optsetlect = $_REQUEST['product_cat'];
  } else {
      $optsetlect = 0;
  }
  $args = array(
      'show_option_all' => esc_html__('All Categories', 'woocommerce'),
      'hierarchical' => 1,
      'class' => 'cat',
      'echo' => 1,
      'value_field' => 'slug',
      'selected' => $optsetlect,
  );
  $args['taxonomy'] = 'product_cat';
  $args['name'] = 'product_cat';
  $args['class'] = 'cate-dropdown hidden-xs';
  wp_dropdown_categories($args);

  ?>
  <input type="hidden" value="product" name="post_type">
  <?php endif;?>
  <input type="text"  name="s" class="searchbox" maxlength="128" value="<?php echo get_search_query();?>" placeholder="<?php esc_attr_e('Search entire store here...', 'woocommerce');?>">

  <button type="submit" title="<?php esc_attr_e('Search', 'woocommerce');?>" class="search-btn-bg"><span><?php esc_attr_e('Search', 'woocommerce');?></span></button>
  
</form>