function _menu_check_access in Drupal 7

Same name and namespace in other branches

1. 6 includes/menu.inc \_menu_check_access()

Checks access to a menu item using the access callback.

Parameters

$item: A menu router or menu link item

$map: An array of path arguments; for example, array('node', '5').

Return value

$item['access'] becomes TRUE if the item is accessible, FALSE otherwise.

Related topics

2 calls to _menu_check_access()

_menu_link_translate in includes/menu.inc

Provides menu link access control, translation, and argument handling.

_menu_translate in includes/menu.inc

Handles dynamic path translation and menu access control.

File

includes/menu.inc, line 631

API for the Drupal menu system.

Code

function _menu_check_access(&$item, $map) {
  $item['access'] = FALSE;

  // Determine access callback, which will decide whether or not the current
  // user has access to this path.
  $callback = empty($item['access_callback']) ? 0 : trim($item['access_callback']);

  // Check for a TRUE or FALSE value.
  if (is_numeric($callback)) {
    $item['access'] = (bool) $callback;
  }
  else {
    $arguments = menu_unserialize($item['access_arguments'], $map);

    // As call_user_func_array is quite slow and user_access is a very common
    // callback, it is worth making a special case for it.
    if ($callback == 'user_access') {
      $item['access'] = count($arguments) == 1 ? user_access($arguments[0]) : user_access($arguments[0], $arguments[1]);
    }
    elseif (function_exists($callback)) {
      $item['access'] = call_user_func_array($callback, $arguments);
    }
  }
}