How to use custom metabox form and ajax

function.php add code <?php // Register Custom Post Type function custom_post_type_order_book() { $labels = array( 'name' => _x( 'Book Orders', 'Post Type General Name', 'text_domain' ), 'singular_name' => _x( 'Book Order', 'Post Type Singular Name', 'text_domain' ), 'menu_name' => __( 'Book Orders', 'text_domain' ), 'name_admin_bar' => __( 'Book Order', 'text_domain' ), 'archives' => __( 'Item … Continue reading How to use custom metabox form and ajax