book_get_flat_menu

Versions
6 – 7: book_get_flat_menu($book_link)

Get the book menu tree for a page, and return it as a linear array.

Parameters

$book_link A fully loaded menu link that is part of the book hierarchy.

Return value

A linear array of menu links in the order that the links are shown in the menu, so the previous and next pages are the elements before and after the element corresponding to $node. The children of $node (if any) will come immediately after it in the array.

▸ 3 functions call book_get_flat_menu()

▾ 3 functions call book_get_flat_menu()

book_children in modules/book/book.module: Format the menu links for the child pages of the current page.
book_next in modules/book/book.module: Fetches the menu link for the next page of the book.
book_prev in modules/book/book.module: Fetches the menu link for the previous page of the book.

Code

modules/book/book.module, line 513

<?php
function book_get_flat_menu($book_link) {
  static $flat = array();

  if (!isset($flat[$book_link['mlid']])) {
    // Call menu_tree_all_data() to take advantage of the menu system's caching.
    $tree = menu_tree_all_data($book_link['menu_name'], $book_link);
    $flat[$book_link['mlid']] = array();
    _book_flatten_menu($tree, $flat[$book_link['mlid']]);
  }
  return $flat[$book_link['mlid']];
}
?>