Error:404 page not found, code igniter - php

Question

controller.php
<?php
define('_root',$_SERVER['DOCUMENT_ROOT']);
include(_root.'/innoshop/application/models/model.php');
// include_once 'model.php';
class Controller {
public $model;
public function __construct()
{
$this->model = new Model();
}
If i put localhost:8888/projectname, i got error like this
404 Page Not Found
The page you requested was not found.
anyone help me

Answer 1

As the guys say you should read the docs as this is very wrong. To fix do this..
class Controller extends CI_Controller{//better to give your controller a more meaningful name
public function __construct(){
parent::__construct();
//use the CI loader - the model will then be available like this $this->model->some_function();
$this->load->model('model');//better to give your model a more meaningful name as well
}
//the index method allows you to use just the controller name in your URI eg localhost:8888/projectname/index.php/controller
public function index(){
echo 'something to see';
}
//an alternative controller method get it like localhost:8888/projectname/index.php/controller/your_method_name
public function your_method_name(){
echo 'something to see in your method';
}
}
If you want rid of the index.php in the URI search for questions related to .htaccess in CodeIgniter
If you want to be able to use a uri like this localhost:8888/projectname then you need to add a route in config/routes.php that defines the default controller like this $route['default']='controller';