'rows',
'space' => '5px',
'submit_by_key' => TRUE,
'url' => generate_url($vars)];
$form['row'][0]['ip_version'] = [
'type' => 'select',
'name' => 'IP',
'width' => '100%',
'value' => $vars['ip_version'],
'values' => ['' => 'IPv4 & IPv6', '4' => 'IPv4 only', '6' => 'IPv6 only']];
$form['row'][0]['searchby'] = [
'type' => 'select',
'name' => 'Search By',
'width' => '100%',
'onchange' => "$('#address').prop('placeholder', $('#searchby option:selected').text())",
'value' => $vars['searchby'],
'values' => ['mac' => 'MAC Address', 'ip' => 'IP Address']];
$form['row'][0]['address'] = [
'type' => 'text',
'name' => ($vars['searchby'] == 'ip' ? 'IP Address' : 'MAC Address'),
'width' => '100%',
'grid' => 4,
'placeholder' => TRUE,
'submit_by_key' => TRUE,
'value' => escape_html($vars['address'])];
// search button
$form['row'][0]['search'] = [
'type' => 'submit',
'grid' => 4,
//'name' => 'Search',
//'icon' => 'icon-search',
'value' => 'arp',
'right' => TRUE];
print_form($form);
unset($form, $form_items);
// Pagination
$vars['pagination'] = TRUE;
print_arptable($vars);
?>