php - pass parameters in URL code igniter -

i new ci , try pass information login page following...

public function authenticate() {     $this->load->model('user_model', '', true);      if ($this->user_model->authenticate($this->input->post('username'), $this->input->post('password')))     {         $this->session->set_userdata('loggedin', true);         header('location: /');     }     else     {         header('location: /sessions/login/error?='.'1');     } } 

and on login page use _get.

so how best go in codeigniter?

first of all, using sensitive data email/password general no-no. bad practice way.

but answer question here - http://www.codeigniter.com/userguide3/libraries/input.html

$this->input->get('username') equal $_get['username']. might use $this->input->get('username', true) escape malicious code.

and $this->input->post('username') equal $_post['username']. advise use (it requires modification of html though)