function form_select_options

Same name and namespace in other branches
  1. 6.x drupal-6.x/includes/form.inc \form_select_options()

Converts a select form element's options array into HTML.

Parameters

$element: An associative array containing the properties of the element.

$choices: Mixed: Either an associative array of items to list as choices, or an object with an 'option' member that is an associative array. This parameter is only used internally and should not be passed.

Return value

An HTML string of options for the select form element.

Related topics

Form generation
Functions to enable the processing and display of HTML forms.
1 call to form_select_options()
theme_select in drupal-7.x/includes/form.inc
Returns HTML for a select form element.

Archivo

drupal-7.x/includes/form.inc, line 2672
Functions for form and batch generation and processing.

Código

function form_select_options($element, $choices = NULL) {
  if (!isset($choices)) {
    $choices = $element['#options'];
  }
  // array_key_exists() accommodates the rare event where $element['#value'] is NULL.
  // isset() fails in this situation.
  $value_valid = isset($element['#value']) || array_key_exists('#value', $element);
  $value_is_array = $value_valid && is_array($element['#value']);
  $options = '';
  foreach ($choices as $key => $choice) {
    if (is_array($choice)) {
      $options .= '<optgroup label="' . $key . '">';
      $options .= form_select_options($element, $choice);
      $options .= '</optgroup>';
    }
    elseif (is_object($choice)) {
      $options .= form_select_options($element, $choice->option);
    }
    else {
      $key = (string) $key;
      if ($value_valid && (!$value_is_array && (string) $element['#value'] === $key || ($value_is_array && in_array($key, $element['#value'])))) {
        $selected = ' selected="selected"';
      }
      else {
        $selected = '';
      }
      $options .= '<option value="' . check_plain($key) . '"' . $selected . '>' . check_plain($choice) . '</option>';
    }
  }
  return $options;
}