Codeigniter - 显示页面

Question

我在codeigniter中显示index.php时遇到问题。有人可以帮我这个吗？

这是我的index.php：

<form id="myForm" action="<?php echo baseurl('controller/CreateUser'); ?>" method="post">
    Name: <input type="text" name="name"/><br/>
    Username: <input type="text" name="username"/><br/>
    Password: <input type="password" name="password"/><br/>
    <button id="sub">Save</button>
</form>
<span id="result"></span>

这是我的控制器：

public function index(){
    $this->load->view( 'layouts/header', [ 'title' => 'Never Stop Learning!' ] );
    $this->load->view( 'NeverStopLearning/index');
    $this->load->view( 'layouts/footer' );
}

public function CreateUser(){
    $data = array(
        "name" => $this->input->post("name"),
        "username" => $this->input->post("username"),
        "password" => $this->input->post("password")
    );

    if($this->model->Insert('table_users', $data)){
        echo "Successfully Inserted";
    }else{
        echo "Insertion Failed";
    }

}