If ip address is displayed in form action or url

• http://::1/yourproject/
• http://127.0.0.1/yourproject/

Chances are you have left the base url blank

/*|--------------------------------------------------------------------------| Base Site URL|--------------------------------------------------------------------------|| URL to your CodeIgniter root. Typically this will be your base URL,| WITH a trailing slash:||   http://example.com/|| WARNING: You MUST set this value!|| If it is not set, then CodeIgniter will try guess the protocol and path| your installation, but due to security concerns the hostname will be set| to $_SERVER['SERVER_ADDR'] if available, or localhost otherwise.| The auto-detection mechanism exists only for convenience during| development and MUST NOT be used in production!|| If you need to allow multiple domains, remember that this file is still| a PHP script and you can easily do that on your own.|*/$config['base_url'] = '';

Now days in latest versions of codeIgniter it is not recommend that you leave your base_url blank.

• $config['base_url'] = 'http://localhost/yourproject/';
• $config['base_url'] = 'http://www.example.com/';

And is always good to end url with /

You may need to create routes for your form here

application > config > routes.php

CodeIgniter 3: Routing

CodeIgniter 2: Routing

Update:

With CodeIgniter 3 + versions:

When you create a file remember you will have to have first letter ONLY upper case on file names and classes.

What will happen sometimes is that it all may well work in a localhost environment with lower case but when you go to a live server some times will throw errors or not submit forms correct etc.

Example: From Controllers This also applies to Models

This is valid

File name: Verifylogin.php

<?phpclass Verifylogin extends CI_Controller {    public function __construct() {       parent::__construct();    }    public function index() {    }}

This is valid

File name: Verify_login.php

<?phpclass Verify_login extends CI_Controller {    public function __construct() {       parent::__construct();    }    public function index() {    }}

This is not valid

File name: verifylogin.php

class verifylogin extends CI_Controller {    public function __construct() {       parent::__construct();    }    public function index() {    }}

This is not valid

File name: Verify_Login.php

class Verify_Login extends CI_Controller {    public function __construct() {       parent::__construct();    }    public function index() {    }}

Codeigniter Doc's

Go to application/config/config.php set base_url

$config['base_url'] = 'http://localhost/example/';

And refresh your application

Then ::1 error should be gone.

Go to System/core/Config.php

Set config in line 84

public function __construct()    {        $this->config =& get_config();    // Set the base_url automatically if none was provided    if (empty($this->config['base_url']))    {        // The regular expression is only a basic validation for a valid "Host" header.        // It's not exhaustive, only checks for valid characters.        if (isset($_SERVER['HTTP_HOST']) && preg_match('/^((\[[0-9a-f:]+\])|(\d{1,3}(\.\d{1,3}){3})|[a-z0-9\-\.]+)(:\d+)?$/i', $_SERVER['HTTP_HOST']))        {            $base_url = (is_https() ? 'https' : 'http').'://'.$_SERVER['HTTP_HOST']                .substr($_SERVER['SCRIPT_NAME'], 0, strpos($_SERVER['SCRIPT_NAME'], basename($_SERVER['SCRIPT_FILENAME'])));        }        else        {            $base_url = 'http://localhost/';        }        $this->set_item('base_url', $base_url);    }    log_message('info', 'Config Class Initialized');}