Hasan Setiawan

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Open config file from location application/config/config.php and enable or set hooks to true like this:

$config['enable_hooks'] = TRUE;

Then create a new file named hooks.php inside the config folder (i.e. application/config/hooks.php) and add the following code in it:

  
      //application/config/hooks.php
      $hook['post_controller_constructor'][] = array(
          'function' => 'redirect_ssl',
          'filename' => 'ssl.php',
          'filepath' => 'hooks'
       );
  

Now create a new directory named hooks inside the application folder (i.e. application/hooks) and then create a new file named ssl.php inside the hooks folder (i.e. application/hooks/ssl.php).
Add the following code in the ssl.php file:

    
      // application/hooks/ssl.php
      function redirect_ssl() {
          $CI =& get_instance();
          $class = $CI->router->fetch_class();
          $exclude =  array('client');  // add more controller name to exclude ssl.
          if(!in_array($class,$exclude)) {
              // redirecting to ssl.
              $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 {
              // redirecting with no ssl.
              $CI->config->config['base_url'] = str_replace('https://', 'http://', $CI->config->config['base_url']);
              if ($_SERVER['SERVER_PORT'] == 443) redirect($CI->uri->uri_string());
          }
      }