Redirect http to https in codeigniter

Follow below steps to redirect you non-http site to https without using .htaccess

• Change Configuration: go to application/config/config.php and enable hooks to true

            $config['enable_hooks'] = TRUE;

• Create new file hooks.php if not exist other wise open file and paste code

          $hook['post_controller_constructor'][] = array(

                                'function' => 'redirect_ssl',

                                'filename' => 'ssl.php',

                                'filepath' => 'hooks'

                                );

• Now create a new folder hooks if not exist under application folder and then create new file ssl.php and add below code to ssl.php

 <?php

function redirect_ssl() {

    $CI =& get_instance();

    $class = $CI->router->fetch_class();

    $exclude =  array('client');

    if(!in_array($class,$exclude)) {

      $CI->config->config['base_url'] = str_replace('http://', 'https://', $CI->config->config['base_url']);

      if ($_SERVER['SERVER_PORT'] != 443) redirect($CI->uri->uri_string());

    } 

    else {

      $CI->config->config['base_url'] = str_replace('https://', 'http://', $CI->config->config['base_url']);

      if ($_SERVER['SERVER_PORT'] == 443) redirect($CI->uri->uri_string());

    }

}

?>