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_element_info

  1. drupal
    1. 4.7
    2. 5
    3. 6 form.inc
Versions
4.7 _element_info($type, $refresh = null)
5 – 6 _element_info($type, $refresh = NULL)

Retrieve the default properties for the defined element type.

Related topics

Form generation
Functions to enable output of HTML forms and form elements.

▸ 2 functions call _element_info()

▾ 2 functions call _element_info()

drupal_get_form in includes/form.inc
Processes a form array and produces the HTML output of a form. If there is input in the $_POST['edit'] variable, this function will attempt to validate it, using drupal_validate_form(), and then submit the form using drupal_submit_form().
form_builder in includes/form.inc
Adds some required properties to each form element, which are used internally in the form api. This function also automatically assigns the value property from the $edit array, provided the element doesn't already have an assigned value.

Code

includes/form.inc, line 595

<?php
function _element_info($type, $refresh = null) {
  static $cache;

  $basic_defaults = array(
    '#description' => NULL, 
    '#attributes' => array(), 
    '#required' => FALSE, 
    '#tree' => FALSE, 
    '#parents' => array(),
  );
  if (!isset($cache) || $refresh) {
    $cache = array();
    foreach (module_implements('elements') as $module) {
      $elements = module_invoke($module, 'elements');
      if (isset($elements) && is_array($elements)) {
        $cache = array_merge_recursive($cache, $elements);
      }
    }
    if (sizeof($cache)) {
      foreach ($cache as $element_type => $info) {
        $cache[$element_type] = array_merge_recursive($basic_defaults, $info);
      }
    }
  }

  return $cache[$type];
}
?>