how to show exact input field error in codeigniter form validation code example

Example 1: codeigniter form_validation email

$this->form_validation->set_rules('email', 'Email', 'trim|required|valid_email');

Example 2: codeigniter load form_validation

<?php

class Form extends CI_Controller {

        public function index()
        {
                $this->load->helper(array('form', 'url'));

                $this->load->library('form_validation');

                if ($this->form_validation->run() == FALSE)
                {
                        $this->load->view('myform');
                }
                else
                {
                        $this->load->view('formsuccess');
                }
        }
}

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Php Example