drupal 6 basic form , create form in drupal

drupal 6 basic form

<?php
 function test_myform($form_state) {
 // Access log settings:
 $options = array('1' => t('Enabled'), '0' => t('Disabled'));
 $form['access'] = array(
 '#type' => 'fieldset',
 '#title' => t('Access log settings'),
 '#tree' => TRUE,
 );
 $form['access']['log'] = array(
 '#type' => 'radios',
 '#title' => t('Log'),
 '#default_value' => variable_get('log', 0),
 '#options' => $options,
 '#description' => t('The log.'),
 );
 $period = drupal_map_assoc(array(3600, 10800, 21600, 32400, 43200, 86400, 172800, 259200, 604800, 1209600, 2419200, 4838400, 9676800), 'format_interval');
 $form['access']['timer'] = array(
 '#type' => 'select',
 '#title' => t('Discard logs older than'),
 '#default_value' => variable_get('timer', 259200),
 '#options' => $period,
 '#description' => t('The timer.'),
 );
 // Description
 $form['details'] = array(
 '#type' => 'fieldset',
 '#title' => t('Details'),
 '#collapsible' => TRUE,
 '#collapsed' => TRUE,
 );
 $form['details']['description'] = array(
 '#type' => 'textarea',
 '#title' => t('Describe it'),
 '#default_value' => variable_get('description', ''),
 '#cols' => 60,
 '#rows' => 5,
 '#description' => t('Log description.'),
 );
 $form['details']['admin'] = array(
 '#type' => 'checkbox',
 '#title' => t('Only admin can view'),
 '#default_value' => variable_get('admin', 0),
 );
 $form['name'] = array(
 '#type' => 'textfield',
 '#title' => t('Name'),
 '#size' => 30,
 '#maxlength' => 64,
 '#description' => t('Enter the name for this group of settings'),
 );
 $form['hidden'] = array('#type' => 'value', '#value' => 'is_it_here');
 $form['submit'] = array('#type' => 'submit', '#value' => t('Save'));
 return $form;
 }function test_page() {
 return drupal_get_form('test_myform');
 }
 ?>