CI routing issue - php

Question

i am currently learning CI and i have come to an issue that i cant seem to solve.
i set up my wamp server in a drive and inside the www(root) folder i have extracted the codeigniter files.
![example][1][1]: http://i.stack.imgur.com/7RKqG.png
then I created my php files for view/model and controller and set the default route in the config/routes.php
so now when I go to my browser and type localhost I get the post.php displayed without anyissue.
but I am unable to access any of the views from here. for example i have a new_post.php view and when i type in the address bar localhost/new_post.php i get a "Not Found
The requested URL /new_post.php was not found on this server." error.
what am i doing wrong? below i have posted the code which i have written in the post.php controller along with a image of the file structure/names i have.
posts.php - controller
<?php
class Posts extends CI_Controller
{
function __construct()
{
parent::__construct();
$this->load->model('post'); //loads the post model u created in the models folder
}
function index() //goes to this function 1st when u access the controller
{
$data['posts']=$this->post->get_posts(); // load all the data from the get_posts function in post model to the data array posts
$this->load->view('post_index', $data); //loads the view
}
function post($postID)
{
$data['post']=$this->post->get_post($postID);
$this->load->view('post', $data);
}
function new_post()
{
if($_POST)
{
$data=array(
'title'=> $_POST['title'],
'post'=> $_POST['post'],
'active' =>1
);
$this->post->insert_post($data);
redirect(base_url(). 'posts/');
}
else
{
$this->load->view('new_post');
}
}
function editpost($postID)
{
$data['success']=0;
if($_POST)
{
$data_post=array(
'title'=> $_POST['title'],
'post'=> $_POST['post'],
'active' => 1
);
$this->post->update_post($postID,$data);
$data['success'] =1;
}
$data['post']=$this->post->get_post($postID);
$this->load->view('edit_post',$data);
}
function deletepost($postID)
{
$this->post->delete_post($postID);
redirect(base_url(). 'posts/');
}
}
![structure][1] [1]: http://i.stack.imgur.com/SnsbW.png

Answer 1

In CodeIgniter you have to use controller to get access to his function
you are saying "when i type in the address bar localhost/new_post.php i get a Not Found" because you try to direct access its function name you have to use example.com/controllername/functionname like this
http://localhost/posts/new_post
for more information check codeignier url
https://ellislab.com/codeigniter/user-guide/general/urls.html
if you not removed index.php using .htaccess then you have to use your url like this
http://localhost/index.php/posts/new_post

Answer 2

In CodeIgniter, everything runs through the main "index.php" file, in your root directory.
So, you would access your new post page, like this;
http://localhost/index.php/posts/new_post
Have a read through the CodeIgniter user guide, it will answer any problem you have.
https://ellislab.com/codeigniter/user-guide/