function theme_form_element_label

Returns HTML for a form element label and required marker.

Form element labels include the #title and a #required marker. The label is associated with the element itself by the element #id. Labels may appear before or after elements, depending on theme_form_element() and #title_display.

This function will not be called for elements with no labels, depending on #title_display. For elements that have an empty #title and are not required, this function will output no label (''). For required elements that have an empty #title, this will output the required marker alone within the label. The label will use the #id to associate the marker with the field that is required. That is especially important for screenreader users to know which field is required.

Parameters

$variables: An associative array containing:

• element: An associative array containing the properties of the element. Properties used: #required, #title, #id, #value, #description, #label_for.

Related topics

File

core/includes/form.inc, line 4998

Functions for form and batch generation and processing.

Code

function theme_form_element_label($variables) {
  $element = $variables['element'];
  // This is also used in the installer, pre-database setup.
  $t = get_t();

  // If title and required marker are both empty, output no label.
  if ((!isset($element['#title']) || $element['#title'] === '') && empty($element['#required'])) {
    return '';
  }

  // If the element is required, a required marker is appended to the label.
  $required = !empty($element['#required']) ? theme('form_required_marker', array('element' => $element)) : '';

  $title = filter_xss_admin($element['#title']);

  $attributes = array();
  // Style the label as class option to display inline with the element.
  if ($element['#title_display'] == 'after') {
    $attributes['class'] = 'option';
  }
  // Show label only to screen readers to avoid disruption in visual flows.
  elseif ($element['#title_display'] == 'invisible') {
    $attributes['class'] = 'element-invisible';
  }

  // Use the element's ID as the default value of the "for" attribute (to
  // associate the label with this form element), but allow this to be
  // overridden in order to associate the label with a different form element
  // instead.
  if (!empty($element['#label_for'])) {
    $attributes['for'] = $element['#label_for'];
  }
  elseif (!empty($element['#id'])) {
    $attributes['for'] = $element['#id'];
  }

  // The leading whitespace helps visually separate fields from inline labels.
  return ' <label' . backdrop_attributes($attributes) . '>' . $t('!title !required', array('!title' => $title, '!required' => $required)) . "</label>\n";
}