Form validation in codeigniter

Form Validation ---------------------------------

Type : 

'trim|required|min_length[5]|max_length[12]|valid_email|xss_clean|matches[passconf]|is_unique[table.field]'


$this->form_validation->set_rules('username', 'Username', 'trim|required|min_length[5]|max_length[12]');
$this->form_validation->set_rules('password', 'Password', 'trim|required|min_length[8]|matches[passconf]');
$this->form_validation->set_rules('passconf', 'Password Confirmation', 'trim|required');
$this->form_validation->set_rules('email', 'Email', 'trim|required|valid_email');
$this->form_validation->set_rules('email', 'email', 'required|trim|valid_email|xss_clean');

$this->form_validation->set_rules('username', 'User Name', 'required|trim');
$this->form_validation->set_rules('pass', 'Password', 'required|trim');
if ($this->form_validation->run() == FALSE) {

redirect("administration/home");
}else{

}



More Information validation Rules
https://www.tutorialspoint.com/codeigniter/codeigniter_form_validation.htm