Drupal - Build menu using Menu_Block directly

I run across the need for some very specific menus built on the fly for Drupal once in a while. Things that really aren't blocks that should be running around the block admin. A great example would be ajax calls to obtain the submenus for an item and add them to the page post render for seo purposes.

If you need to access a very custom part of some menu, use the menu_block module, and tweak the following code to your needs:

$settings = array(
    'menu_name' => 'main-menu',
    'expanded' => 1, // Expand all children of this tree.
    'level' => 1, // Starting level
    'follow' => 0, // Make the starting level follow the active menu item.
    'depth' => 2, // Maximum depth - 0 is unlimited
    'sort' => 0, // Sort menu tree by the active menu item’s trail.
    'parent_mlid' => 0, // The menu item to start from - 0 is root
    'title_link' => 0, // If the title should be a link or not
    'delta' => 0, // Which menu block this is
);

$menu_block = menu_tree_build($settings);
print render($menu_block['content']);
$settings = array(
    'menu_name' => 'main-menu',
    'expanded' => 1, // Expand all children of this tree.
    'level' => 1, // Starting level
    'follow' => 0, // Make the starting level follow the active menu item.
    'depth' => 2, // Maximum depth - 0 is unlimited
    'sort' => 0, // Sort menu tree by the active menu item’s trail.
    'parent_mlid' => 0, // The menu item to start from - 0 is root
    'title_link' => 0, // If the title should be a link or not
    'delta' => 0, // Which menu block this is
);

$menu_block = menu_tree_build($settings);
print render($menu_block['content']);