Php Codeigniter-从同一控制器在索引函数上加载控制器函数

我想知道我是否可以访问我的“管理员”控制器中的“新管理员”功能，而无需在链接中添加新的“管理员开始”

我的控制器：

<?php
class Admin extends CI_Controller
{
    public function __construct()
    {
        parent::__construct();
        $this->load->library('session');
        $this->load->model('Admin_model', '', TRUE);
        $this->load->view('admin/admin_nav');
    }

    public function index()
    {
        if($this->session->userdata('logged_in'))
        {
            $this->load->view('admin/admin_dashboard');
        } 
        else 
        {
            redirect('login');
        }
    }

    public function new_admin()
    {
        $data = [];

        if($this->input->server('REQUEST_METHOD') == 'POST')
        {
            $email = $this->input->post('email');

            $this->form_validation->set_rules('email', 'E-mail', 'required|valid_email');

            if($this->form_validation->run())
            {
                $result = $this->Admin_model->check_if_admin($email);

                if(!$result)
                {
                    $new_admin = new Admin_model();
                    $new_admin->email = $email;
                    $new_admin->password = password_hash('admin', PASSWORD_DEFAULT, ['cost' => 12]);
                    $this->Admin_model->add_new_admin($new_admin);
                    $data['success'] = 'success';
                }
                else
                {
                    $data["error_email"] = 'error';
                }
            }
        }

        $this->load->view("admin/admin_dashboard", $data);
    }
}

---

您可以将表单操作url更改为索引函数，并检测它是否来自提交操作

像这样更改表单操作URL（内部视图文件）

<form action="<?php echo site_url('admin') ?>" method="post">

public function index()
{
    if($this->input->post())
    {
        $this->new_admin();
    }
    else
    {
        if($this->session->userdata('logged_in'))
        {
            $this->load->view('admin/admin_dashboard');
        }
        else
        {
            redirect('login');
        }
    }

}

public function index()
{
    if($this->input->post())
    {
        $this->new_admin();
    }
    else
    {
        if($this->session->userdata('logged_in'))
        {
            $this->load->view('admin/admin_dashboard');
        }
        else
        {
            redirect('login');
        }
    }

}