captcha image not loading in server

Assuming you are using CodeIgniter Catpcha helper.

You have to use generated image URL instead of hardcoded URL.

Controller:

PHP Code:

$cap = create_captcha($captcha_options);
$this->load->view('yourview', ['cap' => $cap]); 


View:

Code:

<?= $cap['image'] ?>

The image attribute already holds full img tag.

More in the manual:
https://www.codeigniter.com/user_guide/h...elper.html