helpercode0

<?php
add_filter( 'get_post_metadata', 'WDFI_get_post_metadata', 50, 10);
function WDFI_get_post_metadata($null, $object_id, $meta_key, $single ){
	        if ( ( is_admin() && ( ! defined( 'DOING_AJAX' ) || ! DOING_AJAX ) ) ) {
	                return $null;
	        }
	        if ( ! empty( $meta_key ) && '_thumbnail_id' !== $meta_key ) {
	                return $null;
	        }
	        $post_type = get_post_type( $object_id );

helpercode0

<?php
/**
 * WooCommerce Extra Feature
 * --------------------------
 *
 * Add custom fee to cart automatically
 *
 */
function woo_add_cart_fee() {