wordpress fetch all top level menu in array - arrays

Question

I want to fetch all top level menu in array that are set in menu section from admin panel in wordpress.
please help.
Thanks

Answer 1

In your themes function.php:
register_nav_menus( array(
'top_level_new' => __( 'Mail Navigation', 'twentyten' ),
) );
The above code blocks allows you to create a separate level of menu.
Just copy and paste the code to create a separate level of menu.
Go to the wp-admin panel.
Choose the menu from the menu selector, add the pages to the menu.
The below is the block of code that allows you to fetch the menus in the front end.
<?php
$defaults = array(
'theme_location' => 'top_level_new',
'menu' => '',
'container' => 'div',
'container_class' => '',
'container_id' => '',
'menu_class' => 'menu',
'menu_id' => '',
'echo' => true,
'fallback_cb' => 'wp_page_menu',
'before' => '',
'after' => '',
'link_before' => '',
'link_after' => '',
'items_wrap' => '<ul id="%1$s" class="%2$s">%3$s</ul>',
'depth' => 0,
'walker' => ''
);
wp_nav_menu( $defaults );
?>

Answer 2

<?php
function wp_get_menu_array($current_menu) {
$array_menu = wp_get_nav_menu_items($current_menu);
$menu = array();
foreach ($array_menu as $m1) {
if (empty($m1->menu_item_parent)) {
$menu[$m1->ID] = array();
$menu[$m1->ID]['ID'] = $m1->ID;
$menu[$m1->ID]['title'] = $m1->title;
$menu[$m1->ID]['url'] = $m1->url;
$menu[$m1->ID]['children'] = array();
$childMenu = array();
foreach ($array_menu as $m2) {
if ($m2->menu_item_parent == $m1->ID) {
$childMenu[$m2->ID] = array();
$childMenu[$m2->ID]['ID'] = $m2->ID;
$childMenu[$m2->ID]['title'] = $m2->title;
$childMenu[$m2->ID]['url'] = $m2->url;
$childMenu[$m2->ID]['children'] = array();
$grandChildMenu = array();
foreach ($array_menu as $m3) {
if ($m3->menu_item_parent == $m2->ID) {
$grandChildMenu[$m3->ID] = array();
$grandChildMenu[$m3->ID]['ID'] = $m3->ID;
$grandChildMenu[$m3->ID]['title'] = $m3->title;
$grandChildMenu[$m3->ID]['url'] = $m3->url;
$childMenu[$m3->menu_item_parent]['children'][$m3->ID] = $grandChildMenu[$m3->ID];
}
}
$menu[$m2->menu_item_parent]['children'][$m2->ID] = $childMenu[$m2->ID];
}
}
}
}
return $menu;
}
?>