Hello readers, today we will discuss "how you can add category for post type page".

When a user install the WordPress, user will only get category for "post type post".

If user want to add taxonomy or category for "post type page", then user need to add below code.

<?php
function add_custom_taxonomies() {
    // Add new "Locations" taxonomy to Posts
    register_taxonomy('location', 'page', array(
        // Hierarchical taxonomy (like location)
        'hierarchical'      => true,
        // This array of options controls the labels displayed in the WordPress Admin UI
        'labels'            => array(
            'name'              => _x('Locations', 'taxonomy general name' ),
            'singular_name'     => _x('Location', 'taxonomy singular name' ),
            'search_items'      =>  __( 'Search Locations' ),
            'all_items'         => __( 'All Locations' ),
            'parent_item'       => __( 'Parent Location' ),
            'parent_item_colon' => __( 'Parent Location:' ),
            'edit_item'         => __( 'Edit Location' ),
            'update_item'       => __( 'Update Location' ),
            'add_new_item'      => __( 'Add New Location' ),
            'new_item_name'     => __( 'New location Name' ),
            'menu_name'         => __( 'Locations' ),
        ),

        // Control the slugs used for this taxonomy
        'rewrite'           => array(
            'slug'              => 'location', // need to change as you want
            'with_front'        => false, // Don't display the category base before "/locations/"
            'hierarchical'      => true // This will allow URL's like "/locations/boston/cambridge/"
        ),
    ));
}
add_action( 'init', 'add_custom_taxonomies', 0 );