form in codeigniter not posting - php

Question

I am creating a form in codeignitor and every time I try to submit something the page does nothing in chrome or in firefox gives me this message:
The address wasn't understood
Firefox doesn't know how to open this address, because one of the
following protocols (localhost) isn't associated with any program or
is not allowed in this context.
You might need to install other software to open this address.
In internet explorer it trys to find an application to open the page.
I can access the same address directly but it won't let me do it when I submit the form.
this is the code for the form:
<?php
$hidden = array('account_id' => '1');
echo form_open('post', '', $hidden);
?>
<label for="post">Post:</label>
<input type="text" name="post" id="post"/>
<br/>
<input type="submit" value="post" />
</form>
This is the post controller:
<?php
class Post extends CI_Controller {
public function __construct()
{
parent::__construct();
$this->load->model('posts_model');
$this->load->helper('url_helper');
$this->load->helper('form');
}
function index() {
$data['title'] = "posted";
$this->posts_model->add_post();
$this->load->view('templates/header', $data);
$this->load->view('comment/index', $data);
$this->load->view('templates/footer');
}
}
?>
This is the function in the posts_model:
function add_post() {
$data = array('person_acc_id' => $this-> input -> post('account_id'),
'post' => $this -> input -> post('post'),
'deleted' => 0,
'edited' => 0,
'post_time' => date('Y-m-d H:i:s', time()));
$this -> db -> insert('post', $data);
}

Answer 1

Actually you didn't set any method to form. Means your form action is Wrong.
In your function index() you call the view. So Then its load from in that. So if I click form submit <form> come to POST Controller. So it again execute function index() again. This will run like loop til you fix it.
So what you have to do is.
In controller Create new method to receive data
public function validate_form()
{
#your Form validate Code goes here
}
In view <form> should be
echo form_open('post/validate_form', '', $hidden);
this will act like
<form method="post" accept-charset="utf-8" action="http:/example.com/index.php/post/validate_form" account_id="1" />
To Know about Form Validation

Answer 2

Just check your config.php in application/config, then change your link like this:
$config['base_url'] = 'http://localhost/yourApp/';
I guess your value before is like this:
$config['base_url'] = 'localhost/yourApp/';

Answer 3

My code was actually fine. Once I put it on a real server it works. It would not work with localhost.