function _menu_tree_data
_menu_tree_data(&$links, $parents, $depth)
Builds the data representing a menu tree.
The function is a bit complex because the rendering of a link depends on the next menu link.
Related topics
File
- includes/menu.inc, line 1576
- API for the Drupal menu system.
Code
function _menu_tree_data(&$links, $parents, $depth) { $tree = array(); while ($item = array_pop($links)) { // We need to determine if we're on the path to root so we can later build // the correct active trail and breadcrumb. $item['in_active_trail'] = in_array($item['mlid'], $parents); // Add the current link to the tree. $tree[$item['mlid']] = array( 'link' => $item, 'below' => array(), ); // Look ahead to the next link, but leave it on the array so it's available // to other recursive function calls if we return or build a sub-tree. $next = end($links); // Check whether the next link is the first in a new sub-tree. if ($next && $next['depth'] > $depth) { // Recursively call _menu_tree_data to build the sub-tree. $tree[$item['mlid']]['below'] = _menu_tree_data($links, $parents, $next['depth']); // Fetch next link after filling the sub-tree. $next = end($links); } // Determine if we should exit the loop and return. if (!$next || $next['depth'] < $depth) { break; } } return $tree; }
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Licensed under the GNU General Public License, version 2 and later.
Drupal is a registered trademark of Dries Buytaert.
https://api.drupal.org/api/drupal/includes!menu.inc/function/_menu_tree_data/7.x