menu_tree_output

6 menu.inc	`menu_tree_output($tree)`
7 menu.inc	`menu_tree_output($tree)`
8 menu.inc	`menu_tree_output($tree)`

Returns a rendered menu tree.

Parameters

$tree: A data structure representing the tree as returned from menu_tree_data.

Return value

The rendered HTML of that data structure.

File

includes/menu.inc, line 739: API for the Drupal menu system.

Code

function menu_tree_output($tree) {
  $output = '';
  $items = array();

  // Pull out just the menu items we are going to render so that we
  // get an accurate count for the first/last classes.
  foreach ($tree as $data) {
    if (!$data['link']['hidden']) {
      $items[] = $data;
    }
  }

  $num_items = count($items);
  foreach ($items as $i => $data) {
    $extra_class = array();
    if ($i == 0) {
      $extra_class[] = 'first';
    }
    if ($i == $num_items - 1) {
      $extra_class[] = 'last';
    }
    $extra_class = implode(' ', $extra_class);
    $link = theme('menu_item_link', $data['link']);
    if ($data['below']) {
      $output .= theme('menu_item', $link, $data['link']['has_children'], menu_tree_output($data['below']), $data['link']['in_active_trail'], $extra_class);
    }
    else {
      $output .= theme('menu_item', $link, $data['link']['has_children'], '', $data['link']['in_active_trail'], $extra_class);
    }
  }
  return $output ? theme('menu_tree', $output) : '';
}

Comments

fix for drop down menu on the option enable/disable expanded

Posted by roxangui on August 4, 2010 at 11:24pm

<?php
function menu_tree_output($tree) {
  $output = '';
  $items = array();

  // Pull out just the menu items we are going to render so that we
  // get an accurate count for the first/last classes.
  foreach ($tree as $data) {
    if (!$data['link']['hidden']) {
      $items[] = $data;
    }
  }

  $num_items = count($items);
  foreach ($items as $i => $data) {
    $extra_class = array();
    if ($i == 0) {
      $extra_class[] = 'first';
    }
    if ($i == $num_items - 1) {
      $extra_class[] = 'last';
    }
    $extra_class = implode(' ', $extra_class);
    $link = theme('menu_item_link', $data['link']);
    
    // fix for disabled/enabled expanded menu option. it won't show drop down menu when the menu is active 
    if ($data['link']['expanded']) {
      $output .= theme('menu_item', $link, $data['link']['has_children'], menu_tree_output($data['below']), $data['link']['in_active_trail'], $extra_class);
    }
    else {
      $output .= theme('menu_item', $link, $data['link']['has_children'], '', $data['link']['in_active_trail'], $extra_class);
    }
  }
  return $output ? theme('menu_tree', $output) : '';
}
?>

Duplication

Posted by rimian on September 23, 2010 at 1:29am

This would better:

// fix for disabled/enabled expanded menu option. it won't show drop down menu when the menu is active
$below = $data['link']['expanded'] ? menu_tree_output($data['below']) : '';
$output .= theme('menu_item', $link, $data['link']['has_children'], $below, $data['link']['in_active_trail'], $extra_class);

drupal 6

Posted by ricardom on October 13, 2011 at 3:57pm

this has totally worked for us 'til now. Somehow i created a menu item and placed it as a parent. (i was testing the parent item) then i deleted it. now we have this error:

warning: Invalid argument supplied for foreach() in /var/www/drupal/includes/menu.inc on line 734.

any idea what is the issue?

from php website:
"The foreach construct simply gives an easy way to iterate over arrays. foreach works only on arrays (and objects), and will issue an error when you try to use it on a variable with a different data type or an uninitialized variable. "
it was working before...

we have the same code as

Posted by ricardom on October 13, 2011 at 3:58pm

we have the same code as well...i dropped it about a year ago:
function menu_tree_output($tree) {
$output = '';
$items = array();

// Pull out just the menu items we are going to render so that we
// get an accurate count for the first/last classes.
foreach ($tree as $data) {
if (!$data['link']['hidden']) {
$items[] = $data;
}
}

$num_items = count($items);
foreach ($items as $i => $data) {
$extra_class = NULL;
if ($i == 0) {
$extra_class = 'first';
}
if ($i == $num_items - 1) {
$extra_class = 'last';
}
$link = theme('menu_item_link', $data['link']);
if ($data['below']) {
$output .= theme('menu_item', $link, $data['link']['has_children'], menu_tree_output($data['below']), $data['link']['in_active_trail'], $extra_class);
}
else {
$output .= theme('menu_item', $link, $data['link']['has_children'], '', $data['link']['in_active_trail'], $extra_class);
}
}
return $output ? theme('menu_tree', $output) : '';
}

Parameters

Return value

Related topics

3 calls to menu_tree_output()