function crumbs_reduce_path in Crumbs, the Breadcrumbs suite 7

Same name and namespace in other branches

1. 6.2 crumbs.trail.inc \crumbs_reduce_path()
2. 7.2 crumbs.module \crumbs_reduce_path()

Chop off path fragments until we find a valid path.

Parameters

$path: Starting path or alias

$depth: Max number of fragments we try to chop off. -1 means no limit.

3 calls to crumbs_reduce_path()

crumbs_debug_page in admin/crumbs.debug.inc

crumbs_ParentFinder::_findParentPath in lib/ParentFinder.php

path_CrumbsMonoPlugin::findParent in plugins/crumbs.path.inc

File

./crumbs.module, line 492

Provides an API for building breadcrumbs.

Code

function crumbs_reduce_path($path, $depth = -1) {
  $fragments = explode('/', $path);
  while (count($fragments) > 1 && $depth !== 0) {
    array_pop($fragments);
    $parent_path = implode('/', $fragments);
    $parent_item = crumbs_get_router_item($parent_path);
    if ($parent_item && $parent_item['href'] === $parent_item['link_path']) {
      return $parent_item['link_path'];
    }
    --$depth;
  }
}