function get_text_for_select_based_on_attribute($attribute) {
// Get an object representing the current product
    global $product;

// Find the name of the attribute for the slug we passed in to the function
    $attribute_name = $product->get_attribute($attribute);

// Create a string for our select
    $select_text = 'Select a ' . $attribute_name;

// Send the $select_text variable back to our calling function
    return $select_text;
}


add_filter('variable_product_select_text', 'get_text_for_select_based_on_attribute', 10, 1);



function wc_dropdown_variation_attribute_options($args = array()) {
  // Uses the same function as above, or optionally a custom filter
  $select_text = get_text_for_select_based_on_attribute($args['attribute']);

  $args = wp_parse_args( $args, array(
      'options'          => false,
      'attribute'        => false,
      'product'          => false,
      'selected'         => false,
      'name'             => '',
      'id'               => '',
      'class'            => '',
      'show_option_none' => __( $select_text, 'woocommerce' ),
      'show_option_color' => __( 'Choose a color', 'woocommerce' ),
      'show_option_size' => __( 'Choose a size', 'woocommerce' )
    ) );

    $options   = $args['options'];
    $product   = $args['product'];
    $attribute = $args['attribute'];
    $name      = $args['name'] ? $args['name'] : 'attribute_' . sanitize_title( $attribute );
    $id        = $args['id'] ? $args['id'] : sanitize_title( $attribute );
    $class     = $args['class'];

    if ( empty( $options ) && ! empty( $product ) && ! empty( $attribute ) ) {
        $attributes = $product->get_variation_attributes();
        $options    = $attributes[ $attribute ];
    }

    echo '<select id="' . esc_attr( $id ) . '" class="' . esc_attr( $class ) . '" name="' . esc_attr( $name ) . '" data-attribute_name="attribute_' . esc_attr( sanitize_title( $attribute ) ) . '">';

    if ( $args['show_option_none'] ) {
        echo '<option value="">' . esc_html( $args['show_option_none'] ) . '</option>';
    }
    if ( $args['$id_colors'] ) {
        echo '<option value="">' . esc_html( $args['show_option_color'] ) . '</option>';
    }
    if ( $args['$id_sizes'] ) {
        echo '<option value="">' . esc_html( $args['show_option_size'] ) . '</option>';
    }

    if ( ! empty( $options ) ) {
        if ( $product && taxonomy_exists( $attribute ) ) {
            // Get terms if this is a taxonomy - ordered. We need the names too.
            $terms = wc_get_product_terms( $product->id, $attribute, array( 'fields' => 'all' ) );

            foreach ( $terms as $term ) {
                if ( in_array( $term->slug, $options ) ) {
                    echo '<option value="' . esc_attr( $term->slug ) . '" ' . selected( sanitize_title( $args['selected'] ), $term->slug, false ) . '>' . apply_filters( 'woocommerce_variation_option_name', $term->name ) . '</option>';
                }
            }
        } else {
            foreach ( $options as $option ) {
                // This handles < 2.4.0 bw compatibility where text attributes were not sanitized.
                $selected = sanitize_title( $args['selected'] ) === $args['selected'] ? selected( $args['selected'], sanitize_title( $option ), false ) : selected( $args['selected'], $option, false );
                echo '<option value="' . esc_attr( $option ) . '" ' . $selected . '>' . esc_html( apply_filters( 'woocommerce_variation_option_name', $option ) ) . '</option>';
            }
        }
    }

    echo '</select>';
}