How to call one controller function in another con

问题:

I have one controller named home.php in which a function named podetails is there. I want to call this function in another controller user.php.
Is it possible to do so? I have read about HMVC in CI, but I want to know is it possible to do without using hmvc?

回答1:

To extend controller please either follow this tutorial or see some code below.

---

differences between private/public/protected

---

make a file in folder /application/core/ named MY_Controller.php

Within that file have some code like

<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');

class MY_Controller extends CI_Controller {

    protected $data = Array(); //protected variables goes here its declaration

    function __construct() {

        parent::__construct();
        $this->output->enable_profiler(FALSE); // I keep this here so I dont have to manualy edit each controller to see profiler or not        
        $this->load->model('some_model'); //this can be also done in autoload...
        //load helpers and everything here like form_helper etc
    }

    protected function protectedOne() {

    }

    public function publicOne() {

    }

    private function _privateOne() {

    }

    protected function render($view_file) {

        $this->load->view('header_view');
        if ($this->_is_admin()) $this->load->view('admin_menu_view');

        $this->load->view($view_file . '_view', $this->data); //note all my view files are named <name>_view.php
        $this->load->view('footer_view');

    }

    private function _isAdmin() {

        return TRUE;

    }

}

and now in any of yours existing controllers just edit 1st or 2nd line where

class <controller_name> extends MY_Controller {

and you are done

also note that all your variables that are meant to be used in view are in this variable (array) $this->data

example of some controller that is extended by MY_Controller

<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');

class About extends MY_Controller {

    public function __construct() {

        parent::__construct();

    }

    public function index() {
        $this->data['today'] = date('Y-m-d'); //in view it will be $today;
        $this->render('page/about_us'); //calling common function declared in MY_Controller
    }

}

回答2:

write the podetails() as a function within a helper file.

then load that helper in both of the controllers.

in the controller you just call podetails()

Suppose:

--controller 1--

function podetails()
{
   podetails(); // will call function in helper ;
}

--controller 2--

function podetails()
{
   podetails(); // will call function in helper ;
}