Load view from Controller issue

PHP Code:

<?php

class Pages extends CI_Controller {

    public function __construct() {
        parent::__construct();
    }

    public function view($page = 'home') {
        if (!file_exists(APPPATH . 'views/pages/' . $page . '.php')) {
            show_404();
        }

        $data['title'] = ucfirst($page);

        $this->load->view('templates/header');
        $this->load->view('pages/' . $page, $data);
        $this->load->view('templates/footer');
    }

}

Code:

RewriteEngine on

RewriteCond %{SERVER_PORT} 80

RewriteCond %{HTTP_HOST} ^(www\.)?mysite\.com

RewriteRule ^(.*)$ https://www.mysite.com/$1 [R,L]

RewriteCond $1 !^(index\.php|assets|images|js|css|uploads|favicon.png|resources|robots\.txt)

RewriteCond %(REQUEST_FILENAME) !-f

RewriteCond %(REQUEST_FILENAME) !-d

RewriteRule ^(.*)$ index.php?/$1 [L,QSA]

PHP Code:

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

$route['sendemail'] = 'sendemail/index';

$route['default_controller'] = 'pages/view';
$route['(:any)'] = 'pages/view/$1';

$route['404_override'] = '';
$route['translate_uri_dashes'] = FALSE;

PHP Code:

<?php

defined('BASEPATH') OR exit('No direct script access allowed');

class SendEmail extends CI_Controller {

    public function __construct() {
        parent::__construct();
    }

    public function index() {
        // Check form submit or not
        //var_dump($this->input->post());

        if ($this->input->post('submit') != NULL) {

            // POST data
            $postData = $this->input->post();

            //SMTP related configuration is defined in /config/email.php
            //it loads automatically by CodIgniter
            
            $this->load->library('email');
            $this->email->set_newline("\r\n");

            $this->email->from($postData['email'], $postData['name']);
            $this->email->to(ADMIN_CURRENT_EMAIL);

            $this->email->subject(CONTACT_US_FORM_SUBJECT);
            $this->email->message('Testing the email class.');

            $data['is_error'] = false;

            if ($this->email->send()) {
                $data['message'] = 'The email has been sent successfully.';
            } else {
                $data['is_error'] = true;
                $data['message'] = 'Sorry, the email was not sent successfully. Try again later or send a direct email to ' . ADMIN_CURRENT_EMAIL;
                //echo $this->email->print_debugger();
            }
            
            $this->load->view('contact-us', $data);           
            
        } else {
            echo "Invalid request.";
            die();
        }
    }

}

?>

PHP Code:

$this->load->view('contact-us', $data);

PHP Code:

$this->load->view('pages/contact-us', $data);

PHP Code:

// wont work
$this->load->view('contact-us', $data);

// should be like this.
$this->load->view('pages/view/contact-us', $data);

PHP Code:

// -----------------------------------------------------------------------

if ( ! function_exists('redirectBack'))
{
    /**
     * redirectBack ()
     * -------------------------------------------------------------------
     *
     * Redirect back to previous page
     *
     */
    function redirectBack()
    {
        if (isset($_SERVER['HTTP_REFERER']))
        {
            header('Location: '.$_SERVER['HTTP_REFERER']);
        }
        else
        {
            header('Location: http://'.$_SERVER['SERVER_NAME']);
        }

        exit;
    }
}

PHP Code:

/*1*/ $this->load->view('templates/header');
/*2*/ $this->load->view('pages/contact-us', $data);
/*3*/ $this->load->view('templates/footer');

PHP Code:

$this->load->view('pages/view/contact-us', $data);

PHP Code:

// Try changing this
$route['(:any)'] = 'pages/view/$1';

// To this
$route['pages/view/(.+)'] = 'pages/view/$1';

PHP Code:

$route['translate_uri_dashes'] = FALSE;
As evident by the boolean value, this is not exactly a route. This option enables you to automatically
replace dashes (‘-‘) with underscores in the controller and method URI segments, thus saving you additional
route entries if you need to do that. This is required, because the dash isn’t a valid class or method name
character and would cause a fatal error if you try to use it.