Assign post category to a page by selecting category from page dashboard
add this code into functions.php and a taxonomy box will be created for page from where user can make categories for page. <?php add_action( ‘init’, ‘create_book_tax’ ); function create_book_tax() { register_taxonomy( ‘genre’, ‘page’, array( ‘label’ => __( ‘Genre’ ), ‘rewrite’ => array( ‘slug’ => ‘genre’ ), ‘hierarchical’ => true, ) ); } ?>