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Editorial Team
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Asked: 2026-05-26T20:24:34+00:00

hi i am currently learning code igniter i am pretty much new to this

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hi i am currently learning code igniter i am pretty much new to this i have an issue with code igniter validations. I cant figure out what i am doing wrong please guide me.
currently what is happening is that whenever i submit with empty fields i am redirected to same page but when i populate the fields i am redirected to same page but the page is blank.
this is my user class

class User extends CI_Controller {

    function User() {
        parent::__construct();

        $this->view_data['base_url'] = base_url();
    }

    function index() {

        $this->register();
    }

    function register() {

        $this->load->library('form_validation');
        $this->form_validation->set_rules('username', 'Username', 'trim|required|alpha_numeric|min_length[6]');
        if ($this->form_validation->run() == false) {
            $this->load->view('view_register', $this->view_data);
        } else {
            $username=$this->input->post('username');
        }
    }

}

and this is my view_register.php (view)

<body>
    <h1>User Registration</h1>
    please fill in following details
    <?php
    echo form_open(base_url().'user/register');
    ?>
    <?php
    $username = array(
        'name' => 'username',
        'id' => 'username',
        'value' => ''
    );
    $password = array(
        'name' => 'password',
        'id' => 'password',
        'value' => ''
    );
    $con_password = array(
        'name' => 'con_password',
        'id' => 'con_password',
        'value' => ''
    );
    $email = array(
        'name' => 'email',
        'id' => 'email',
        'value' => ''
    );
    ?>

    <ul>
        <li>
            <label>Username</label>
            <div>
                <?php echo form_input($username); ?>
            </div>
        </li>
    </ul>
    <ul>
        <li>
            <label>Email</label>
            <div>
                <?php echo form_input($email); ?>
            </div>
        </li>
    </ul>
    <ul>
        <li>
            <label>Password</label>
            <div>
                <?php echo form_password($password); ?>
            </div>
        </li>
    </ul>
    <ul>
        <li>
            <label>Confirm</label>
            <div>
                <?php echo form_password($con_password); ?>
            </div>
        </li>
    </ul>
    <ul>
        <li>
            <div>
                <?php echo form_submit(array('name' => 'register'), 'Register'); ?>
            </div>
        </li>
    </ul>
    <?php echo form_close(); ?>
</body>
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1 Answer

  1. Editorial Team

    Beacuse you’re not loading a view in case validation is right, so CI calls again that controller, but displays nothing:

    function register() {

    $this->load->library('form_validation');
    $this->form_validation->set_rules('username', 'Username', 'trim|required|alpha_numeric|min_length[6]');

    if ($this->form_validation->run() == false)
    {
        $this->load->view('view_register', $this->view_data);
    } else
    {
        $username=$this->input->post('username');
        $this->load->view('success');  // <------ put your view for success here
    }
}

    Also, you should be opening the form with this, instead of your code:

     echo form_open('user/register');

    it works out by itself the correct url (anologuely to site_url());

    Try putting, also, echo form_error('username') under the username input to display the validation errors.

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