WordPressCustom Post Types

Syntax

  • register_post_type( $post_type, $args );

Parameters

ParameterDetails
$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.

Custom Post 'Book' Screenshot

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'); 

or

add_action('init','custom_postytpe');

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

Simple-custom Post Type

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');