Example 1: wordpres get_posttype
if ( get_post_type( get_the_ID() ) == 'slug_post_type' ) {
}
Example 2: wordpress register_post_type
function wpdocs_codex_book_init() {
$labels = array(
'name' => _x( 'Books', 'Post type general name', 'textdomain' ),
'singular_name' => _x( 'Book', 'Post type singular name', 'textdomain' ),
'menu_name' => _x( 'Books', 'Admin Menu text', 'textdomain' ),
'name_admin_bar' => _x( 'Book', 'Add New on Toolbar', 'textdomain' ),
'add_new' => __( 'Add New', 'textdomain' ),
'add_new_item' => __( 'Add New Book', 'textdomain' ),
'new_item' => __( 'New Book', 'textdomain' ),
'edit_item' => __( 'Edit Book', 'textdomain' ),
'view_item' => __( 'View Book', 'textdomain' ),
'all_items' => __( 'All Books', 'textdomain' ),
'search_items' => __( 'Search Books', 'textdomain' ),
'parent_item_colon' => __( 'Parent Books:', 'textdomain' ),
'not_found' => __( 'No books found.', 'textdomain' ),
'not_found_in_trash' => __( 'No books found in Trash.', 'textdomain' ),
'featured_image' => _x( 'Book Cover Image', 'Overrides the “Featured Image” phrase for this post type. Added in 4.3', 'textdomain' ),
'set_featured_image' => _x( 'Set cover image', 'Overrides the “Set featured image” phrase for this post type. Added in 4.3', 'textdomain' ),
'remove_featured_image' => _x( 'Remove cover image', 'Overrides the “Remove featured image” phrase for this post type. Added in 4.3', 'textdomain' ),
'use_featured_image' => _x( 'Use as cover image', 'Overrides the “Use as featured image” phrase for this post type. Added in 4.3', 'textdomain' ),
'archives' => _x( 'Book archives', 'The post type archive label used in nav menus. Default “Post Archives”. Added in 4.4', 'textdomain' ),
'insert_into_item' => _x( 'Insert into book', 'Overrides the “Insert into post”/”Insert into page” phrase (used when inserting media into a post). Added in 4.4', 'textdomain' ),
'uploaded_to_this_item' => _x( 'Uploaded to this book', 'Overrides the “Uploaded to this post”/”Uploaded to this page” phrase (used when viewing media attached to a post). Added in 4.4', 'textdomain' ),
'filter_items_list' => _x( 'Filter books list', 'Screen reader text for the filter links heading on the post type listing screen. Default “Filter posts list”/”Filter pages list”. Added in 4.4', 'textdomain' ),
'items_list_navigation' => _x( 'Books list navigation', 'Screen reader text for the pagination heading on the post type listing screen. Default “Posts list navigation”/”Pages list navigation”. Added in 4.4', 'textdomain' ),
'items_list' => _x( 'Books list', 'Screen reader text for the items list heading on the post type listing screen. Default “Posts list”/”Pages list”. Added in 4.4', 'textdomain' ),
);
$args = array(
'labels' => $labels,
'public' => true,
'publicly_queryable' => true,
'show_ui' => true,
'show_in_menu' => true,
'query_var' => true,
'rewrite' => array( 'slug' => 'book' ),
'capability_type' => 'post',
'has_archive' => true,
'hierarchical' => false,
'menu_position' => null,
'supports' => array( 'title', 'editor', 'author', 'thumbnail', 'excerpt', 'comments' ),
);
register_post_type( 'book', $args );
}
add_action( 'init', 'wpdocs_codex_book_init' );