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Hi. I need your help. I have several days to try to solve a problem with my code and I do not find the error.
I leave you here what happens to me in case someone could help me.

I'm using Codeigniter 3.1.5 with HMVC and I'm using the xmlrpc libraries. 
I have created two controllers xmlrpc is the part of the server 
PHP Code:
<?php
class Xmlrpc extends MX_Controller {
 
   
    private $username 
'';
 
   private $pass '';
 
   private $id_user;
 
   
    public 
function __construct() {
 
       parent::__construct();
 
       
        $this
->load->library('xmlrpc');
 
       $this->load->library('xmlrpcs');

 
       $config['functions']['wp.getCategories'] = array('function' => 'Xmlrpc.getCategories');

 
       $this->xmlrpcs->initialize($config);

 
       $this->xmlrpcs->serve();        
    
}
 
   
    public 
function getCategories($request){
 
       
        $parameters 
$request->output_parameters();

 
       $this->load->model('publicador/Categorias_model');
 
       
        $this
->Publicador_categorias_model->id_user 1;
 
       $categorias $this->Categorias_model->get_all();
 
       
        $categories_struct 
= array();
 
       foreach ($categorias as $categoria){           
            $struct 
= array(
 
                       'categoryId' => array($categoria->id,'int'), 
 
                       'parentId' => array(0,'int'), 
 
                       'description' => array($categoria->nombre,'string'), 
 
                       'categoryDescription' => array($categoria->nombre,'string'), 
 
                       'categoryName' => array($categoria->nombre,'string'), 
 
                       'htmlUrl' => array('','string'), 
 
                       'rssUrl' => array('','string'), 
 
                   );
 
           
            $categories_struct
[] = array($struct,'struct');
 
       }
 
 
       $response = array($categories_struct,'array');

 
       
        return $this
->xmlrpc->send_response($response);
 
   }

 
   
    public 
function index(){
 
  
        
    
}




and xmlrpc_client that I use it to communicate with the server.
PHP Code:
<?php
class Xmlrpc_client extends MX_Controller {
 
   
    public 
function __construct() {
 
       parent::__construct();
 
   }
 
   
    public 
function index(){
 
       $server_url base_url().'/index.php/xmlrpc';
 
       
        $this
->load->library('xmlrpc');
 
       $this->xmlrpc->set_debug(true);
 
       
        $this
->xmlrpc->server($server_url,80);

 
       $this->xmlrpc->method('wp.getCategories');
 
       //$this->xmlrpc->method('system.listMethods');
 
       
        $params 
= array(
 
           '1',
 
           'user',
 
           'pass',
 
           array(
 
               array
 
                   'title' => array('Titulo del articulo','string'),
 
                   'description' =>array('descripcion del articulo','string'),
 
                   'categories' => array('Moda')
 
               ),'struct'
 
           )
 
       );

 
       $this->xmlrpc->request($params);

 
       if(! $this->xmlrpc->send_request()){
 
           echo $this->xmlrpc->display_error();
 
       }else{
 
           echo '<pre>';
 
           print_r($this->xmlrpc->display_response());
 
           echo '</pre>';
 
       }
 
   }



In the creation of the server I configure the functions, but when I call them from the client it gives me this error
Quote:"Fatal error: Call to undefined method CI :: getCategories () in / home / jbom / public_html / tools / system / libraries / Xmlrpcs. Phpon line 402 "


I think the bug is trying to call CI :: getCategories () instead of Xmlrpc :: getCategories (), but I do not know why this happens.

Thanks.