How to create custom post type to a WordPress?

To add a custom post type to a WordPress site, you would use the register_post_type() function. For example, to create a custom post type called “Books,” you would add the following code to your functions.php file:

function custom_post_type() {
  $args = array(
    'public' => true,
    'label'  => 'Books'
  );
  register_post_type( 'books', $args );
}
add_action( 'init', 'custom_post_type' );

This code creates a custom post type called “Books” and adds it to the WordPress site. You can then use this custom post type to add and display books on your site.