Sample Code for WordPress Custom Post Type

// Register Custom Post Type
function custom_post_type() {

	$labels = array(
	'name'                  => _x('Post Types','General Name','text_domain'),
	'singular_name'        => _x('Post Type','Singular Name','text_domain'),
	'menu_name'            => __('Post Types','text_domain'),
	'name_admin_bar'       => __('Post Type','text_domain'),
	'archives'             => __('Item Archives','text_domain'),
	'attributes'           => __('Item Attributes','text_domain'),
	'parent_item_colon'    => __('Parent Item:','text_domain'),
	'all_items'            => __('All Items','text_domain'),
	'add_new_item'         => __('Add New Item','text_domain'),
	'add_new'              => __('Add New','text_domain'),
	'new_item'             => __('New Item','text_domain'),
	'edit_item'            => __('Edit Item','text_domain'),
	'update_item'          => __('Update Item','text_domain'),
	'view_item'            => __('View Item','text_domain'),
	'view_items'           => __('View Items','text_domain'),
	'search_items'         => __('Search Item','text_domain'),
	'not_found'            => __('Not found','text_domain'),
	'not_found_in_trash'   => __('Not 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'                 => __( 'Post Type', 'text_domain' ),
		'description'           => __( 'Post Type Description', 'text_domain' ),
		'labels'                => $labels,
		'supports'              => false,
		'taxonomies'            => array( 'category', 'post_tag' ),
		'hierarchical'          => false,
		'public'                => true,
		'show_ui'               => true,
		'show_in_menu'          => true,
		'menu_position'         => 5,
		'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',
	);
	register_post_type( 'post_type', $args );

}

add_action( 'init', 'custom_post_type', 0 );