我正在尝试从URL上传照片，然后将其设置为用户提交的产品的功能图像

现在我可以完成此功能的第一部分了问题是我无法获取媒体的新URL并将其设置为WooCommerce产品的功能图像

这是代码

add_action(\'transition_post_status\', \'new_product_add\', 10, 3);
function new_product_add($new_status, $old_status, $post) {
    if( 
        $old_status != \'publish\' 
        && $new_status == \'pending\' 
        && !empty($post->ID) 
        && in_array( $post->post_type, 
            array( \'product\') 
            )
        ) {
            $external_url = $post->post_excerpt;
            /********************************************/
            function uploadImageToMediaLibrary($postID, $url, $alt = "blabla") {
                $tmp = download_url( $url );
                $desc = $alt;
                $file_array = array();
                preg_match(\'/[^\\?]+\\.(jpg|jpe|jpeg|gif|png)/i\', $url, $matches);
                $file_array[\'name\'] = basename($matches[0]);
                $file_array[\'tmp_name\'] = $tmp;
                if ( is_wp_error( $tmp ) ) {
                    @unlink($file_array[\'tmp_name\']);
                    $file_array[\'tmp_name\'] = \'\';
                }
                $id = media_handle_sideload( $file_array, $postID, $desc);
                if ( is_wp_error($id) ) {
                    @unlink($file_array[\'tmp_name\']);
                    return $id;
                }
                return $id;
            }
            uploadImageToMediaLibrary($post->ID, $external_url, "custom_alt");

                //MEDIA UPLOADED SUCCESSFULLY
                //I DONT KNOW HOW TO GET THE NEW MEDIA URL FROM MEDIA GALLERY 
                //AND SET IT FOR THE PRODUCT FEATURE IMAGE


                /********************************************/
                $term = get_term_by(\'name\', \'PARENT_CATEGORY\', \'product_cat\');
                wp_set_object_terms($post->ID, $term->term_id, \'product_cat\', true);
        }
    }