Custom Post Types

Syntax#

register_post_type( $post_type, $args );

Parameters#

Parameter	Details
$post_type	(string) (Required)
$args	(array/string) (Optional)

Registering a Custom Post Type

Say you have a library website, and you want to have a custom post type named Books. It can be registered as

function create_bookposttype() {
    $args = array(
        'public' => true,
        'labels' => array(
            'name' => __( 'Books' ),
            'singular_name' => __( 'Book' )
        ),
    );
    register_post_type( 'custompost_books', $args );
}

add_action( 'init', 'create_bookposttype' );

and, as simple as that is, you now have a custom post type registered.

This snippet can be placed in your theme functions.php file, or within a plugin structure.

Add Custom Post Types to Main Query

Registering a custom post type does not mean it gets added to the main query automatically. You need to use pre_get_posts filter to add custom post types to main query.

// Show posts of 'post' and 'book' custom post types on home page
add_action( 'pre_get_posts', 'add_my_post_types_to_query' );

function add_my_post_types_to_query( $query ) {
  if ( is_home() && $query->is_main_query() )
    $query->set( 'post_type', array( 'post', 'book' ) );
  return $query;
}

Adding Custom Post Types to Main RSS Feed

Registering a custom post type does not mean it gets added to the main RSS feed automatically.You need to use request filter to add custom post types to main RSS feed.

// Add 'books' custom post types on main RSS feed
function add_book_post_types_to_rss($qv) {
    if (isset($qv['feed']) && !isset($qv['post_type']))
        $qv['post_type'] = array('post', 'books', );
    return $qv;
}
add_filter('request', 'add_book_post_types_to_rss');

Register Custom Post Type

if ( ! function_exists('products_post_type') ) {

function products_post_type() {

    $labels = array(
        'name'                  => _x( 'Products', 'Post Type General Name', 'text_domain' ),
        'singular_name'         => _x( 'Product', 'Post Type Singular Name', 'text_domain' ),
        'menu_name'             => __( 'Products', 'text_domain' ),
        'name_admin_bar'        => __( 'Product', 'text_domain' ),
        'archives'              => __( 'Item Archives', 'text_domain' ),
        'attributes'            => __( 'Item Attributes', 'text_domain' ),
        'parent_item_colon'     => __( 'Parent Product:', 'text_domain' ),
        'all_items'             => __( 'All Products', 'text_domain' ),
        'add_new_item'          => __( 'Add New Product', 'text_domain' ),
        'add_new'               => __( 'New Product', 'text_domain' ),
        'new_item'              => __( 'New Item', 'text_domain' ),
        'edit_item'             => __( 'Edit Product', 'text_domain' ),
        'update_item'           => __( 'Update Product', 'text_domain' ),
        'view_item'             => __( 'View Product', 'text_domain' ),
        'view_items'            => __( 'View Items', 'text_domain' ),
        'search_items'          => __( 'Search products', 'text_domain' ),
        'not_found'             => __( 'No products found', 'text_domain' ),
        'not_found_in_trash'    => __( 'No products found in Trash', 'text_domain' ),
        'featured_image'        => __( 'Featured Image', 'text_domain' ),
        'set_featured_image'    => __( 'Set featured image', 'text_domain' ),
        'remove_featured_image' => __( 'Remove featured image', 'text_domain' ),
        'use_featured_image'    => __( 'Use as featured image', 'text_domain' ),
        'insert_into_item'      => __( 'Insert into item', 'text_domain' ),
        'uploaded_to_this_item' => __( 'Uploaded to this item', 'text_domain' ),
        'items_list'            => __( 'Items list', 'text_domain' ),
        'items_list_navigation' => __( 'Items list navigation', 'text_domain' ),
        'filter_items_list'     => __( 'Filter items list', 'text_domain' ),
    );
    $args = array(
        'label'                 => __( 'Product', 'text_domain' ),
        'description'           => __( 'Product information pages.', 'text_domain' ),
        'labels'                => $labels,
        'supports'              => array( 'title', 'editor', 'excerpt', 'author', 'thumbnail', 'comments', 'custom-fields', ),
        'taxonomies'            => array( 'category', 'post_tag' ),
        'hierarchical'          => false,
        'public'                => true,
        'show_ui'               => true,
        'show_in_menu'          => true,
        'menu_position'         => 5,
        'menu_icon'             => 'dashicons-products',
        'show_in_admin_bar'     => true,
        'show_in_nav_menus'     => true,
        'can_export'            => true,
        'has_archive'           => true,        
        'exclude_from_search'   => false,
        'publicly_queryable'    => true,
        'capability_type'       => 'page',
        'show_in_rest'          => true,
    );
    register_post_type( 'product', $args );

}
add_action( 'init', 'products_post_type', 0 );

}

Custom Post Type using Twenty Fifteen WordPress Theme

You can use any name for the function.

function custom_postype(){
    register_post_type('cus_post',array(

        'labels'=>array(
            'name'=>'khaiyam'// Use any name you want to show in menu for your users
            ),
        'public'=>true,// **Must required 
        'supports'=>array('title','editor','thumbnail')// Features you want to provide on your posts
        )); 
}
add_action('after_setup_theme','custom_postytpe');

add_action('init','custom_postytpe');

You can use any of the hooks you want but of course they have different meaning and uses.

Custom post type in default search

You can add custom post type posts on default wordpress search, Add below code in theme functions.php

function my_search_filter($query) {
  if ( !is_admin() && $query->is_main_query() ) {
    if ($query->is_search) {
      $query->set('post_type', array( 'news','post','article' ) );
    }
  }
}
add_action('pre_get_posts','my_search_filter');