考虑以下类别。

<?php
class MCQAcademy_Endpoint extends WP_REST_Controller {

    /**
     * Register the routes for the objects of the controller.
     */
    public function register_routes() {
        $version = \'1\';
        $namespace = \'custompath/v\' . $version;
        $base = \'endpointbase\';

        register_rest_route(
            $namespace,
            \'/\' . $base,
            array(
                array(
                    \'methods\'         => WP_REST_Server::READABLE,
                    \'callback\'        => array( $this, \'get_items\' ),
                    \'permission_callback\' => array( $this, \'get_items_permissions_check\' ),
                    \'args\'            => array(),
                )
            )
        );
    }

    /**
     *
     */
    public function get_items( $request ) {
        $rs = array(
            \'data\' => array(),
            \'request\' => array(
                \'lang\' => \'en\',
            ),
        );

        $args = array();
        $items = get_posts( $args );

        foreach( $items as $item ) {
            $itemdata = $this->prepare_item_for_response( $item, $request );
            $rs[\'data\'][] = $this->prepare_response_for_collection( $itemdata );
        }

        $rs[\'wp_get_current_user\'] = wp_get_current_user(); // Does not output as expected

        return new WP_REST_Response( $rs, 200 );
    }

    /**
     * Check if a given request has access to get items
     */
    public function get_items_permissions_check( $request ) {
        return true; // to make readable by all
    }


    /**
     * Prepare the item for create or update operation
     */
    protected function prepare_item_for_database( $request ) {
        return $request;
    }

    /**
     * Prepare the item for the REST response
     */
    public function prepare_item_for_response( $item, $request ) {
        $data = array(
            \'ID\' => $item->ID,
            \'post_content\' => wpautop($item->post_content),
            \'post_title\' => $item->post_title,
        );

        return $data;
    }

    /**
     * Get the query params for collections
     */
    public function get_collection_params() {
        return array(
            \'page\'     => array(
                \'description\'        => \'Current page of the collection.\',
                \'type\'               => \'integer\',
                \'default\'            => 1,
                \'sanitize_callback\'  => \'absint\',
            ),
            \'per_page\' => array(
                \'description\'        => \'Maximum number of items to be returned in result set.\',
                \'type\'               => \'integer\',
                \'default\'            => 10,
                \'sanitize_callback\'  => \'absint\',
            ),
            \'search\'   => array(
                \'description\'        => \'Limit results to those matching a string.\',
                \'type\'               => \'string\',
                \'sanitize_callback\'  => \'sanitize_text_field\',
            ),
        );
    }

    // Register our REST Server
    public function hook_rest_server(){
        add_action( \'rest_api_init\', array( $this, \'register_routes\' ) );
    }
}

$myEndpoint = new MCQAcademy_Endpoint();
$myEndpoint->hook_rest_server();