$this->validation_helper->set_rules('name', 'Name', 'required');
<br>$result = $this-&gt;validation_helper-&gt;run();

&lt;?php
<br>class Auth_group_types extends Trongate {
<br>
<br>public function __construct(){
<br>}
<br>
<br>function manage() {
<br> $sql = &quot;select * from auth_group_types
<br> order by name asc&quot;;
<br> $params = array();
<br> $data['rows'] = $this-&gt;model-&gt;query_bind($sql, $params, 'object');
<br> $data['view_module'] = 'auth_group_types';
<br> $data['view_file'] = 'manage';
<br> $this-&gt;view('manage', $data);
<br>}
<br>
<br>function create() {
<br> $update_id = segment(3);
<br>
<br> if ((is_numeric($update_id)) &amp;&amp; (REQUEST_TYPE == 'GET')) {
<br> $data = $this-&gt;_fetch_data_from_db($update_id);
<br> } else {
<br> $data = $this-&gt;_fetch_data_from_post();
<br> }
<br> $data['update_id']=$update_id;
<br> $data['form_location'] = str_replace('/create', '/submit', current_url());
<br> $data['view_module'] = 'auth_group_types';
<br> $data['view_file'] = 'create';
<br> $this-&gt;view('create', $data);
<br>}
<br>
<br>function _fetch_data_from_db($update_id) {
<br> $sql = &quot;select * from auth_group_types where id = :id &quot;;
<br> $data['id'] = $update_id;
<br> $result = $this-&gt;model-&gt;query_bind($sql, $data, 'object');
<br>
<br> if ($result == false) {
<br> $this-&gt;template('error_404');
<br> die();
<br> } else {
<br> foreach ($result as $row){
<br> $data['name'] = $row-&gt;name;
<br> }
<br> return $data;
<br> }
<br>}
<br>
<br>function _fetch_data_from_post() {
<br> $data['name'] = post('name', true);
<br> return $data;
<br>}
<br>
<br>function submit() {
<br> $submit = post('submit', true);
<br> if ($submit == 'Submit') {
<br> $this-&gt;validation_helper-&gt;set_rules('name', 'Name', 'required');
<br> $result = $this-&gt;validation_helper-&gt;run();
<br> if ($result == true) {
<br> $update_id = segment(3);
<br> //insert/update the new record
<br> $data = $this-&gt;_fetch_data_from_post();
<br> if (is_numeric($update_id)) {
<br> //update
<br> $this-&gt;model-&gt;update($update_id, $data, 'auth_group_types');
<br> $flash_msg = 'The record was successfully updated';
<br> } else {
<br> //Insert new
<br> $this-&gt;model-&gt;insert($data, 'auth_group_types');
<br> }
<br> redirect('auth_group_types/manage');
<br> } else {
<br> //form submission error
<br> $this-&gt;create();
<br> }
<br> }
<br>}
<br>
<br>
<br>}

&lt;?= validation_errors() ?&gt;
<br>
<br> &lt;form action=&quot;&lt;?= $form_location ?&gt;&quot; method=&quot;post&quot;&gt;
<br> &lt;p&gt;
<br> &lt;label class=&quot;w3-text-dark-grey&quot;&gt;&lt;b&gt;Name:&lt;/b&gt;&lt;/label&gt;
<br> &lt;input type=&quot;text&quot; name=&quot;name&quot; value=&quot;&lt;?= $name ?&gt;&quot;&gt;
<br> &lt;/p&gt;
<br>
<br> &lt;p&gt;
<br> &lt;button type=&quot;submit&quot; name=&quot;submit&quot; value=&quot;Submit&quot;&gt;Save&lt;/button&gt;
<br> &lt;?php
<br> echo anchor('auth_group_types/manage/', 'Cancel');
<br> ?&gt;
<br> &lt;/p&gt;
<br> &lt;/form&gt;

&lt;?= validation_errors() ?&gt;
<br>
<br>&lt;form action=&quot;&lt;?= $form_location ?&gt;&quot; method=&quot;post&quot;&gt;
<br> &lt;p&gt;
<br> &lt;label class=&quot;w3-text-dark-grey&quot;&gt;&lt;b&gt;Name:&lt;/b&gt;&lt;/label&gt;
<br> &lt;input type=&quot;text&quot; name=&quot;name&quot; value=&quot;&lt;?= $name ?&gt;&quot;&gt;
<br> &lt;/p&gt;
<br>
<br> &lt;p&gt;
<br> &lt;button type=&quot;submit&quot; name=&quot;submit&quot; value=&quot;Submit&quot;&gt;Save&lt;/button&gt;
<br> &lt;?php
<br> echo anchor('auth_group_types/manage/', 'Cancel');
<br> ?&gt;
<br> &lt;/p&gt;
<br> &lt;?= form_close(); ?&gt;
<br> &lt;!-- &lt;/form&gt; --&gt;

&lt;input type=&quot;hidden&quot; name=&quot;csrf_token&quot; value=&quot;$2y$11$aKnp4Fb8J5F3bIjf/Cadwe/xSAYNM9OmfF46RPhcyt2fQqrru6Vrm&quot;&gt;&lt;/form&gt;

public function run($validation_array = null) {
<br>
<br> $this-&gt;csrf_protect();
<br>
<br> if (isset($_SESSION['form_submission_errors'])) {
<br> unset($_SESSION['form_submission_errors']);
<br> }
<br>
<br> if (isset($validation_array)) {
<br> $this-&gt;process_validation_array($validation_array);
<br> }
<br>
<br> if (count($this-&gt;form_submission_errors) &gt; 0) {
<br> $_SESSION['form_submission_errors'] = $this-&gt;form_submission_errors;
<br> return false;
<br> } else {
<br> return true;
<br> }
<br> }

private function csrf_protect() {
<br> //make sure they have posted csrf_token
<br> if (!isset($_POST['csrf_token'])) {
<br> $this-&gt;csrf_block_request();
<br> } else {
<br> $result = password_verify(session_id(), $_POST['csrf_token']);
<br> if ($result == false) {
<br> $this-&gt;csrf_block_request();
<br> }
<br>
<br> unset($_POST['csrf_token']);
<br> }
<br> }
<br>
<br> private function csrf_block_request() {
<br> header(&quot;location: &quot; . BASE_URL);
<br> die();
<br> }

echo form_close();