Expandable parent terms with child terms as links taxonomy menu

This Drupal snippet prints 1 vocabulary's parent terms as expandable menus and the child terms as links to SEO friendly url's.

Parent term 1 (expandable)
- child term 1 (link)
- child term 1 (link)
Parent term 2 (expandable)
- child term 3 (link)

Our thanks to www.computerminds.co.uk for the modifications to this.

Print into a block or where ever you would like the category list/menu to appear.

Snippet:
<?php
// accordion taxonomy menu
// by Chris Herberte
// ** don't forget to change $vocabulary
//
$vocabulary = 1;
//drupal_add_js('misc/collapse.js');
$lastdepth = 1;
$topoflist = 1;
$nid = 0;
if (arg(0) == 'node' && is_numeric(arg(1)) && ! arg(2)) {
    $nid = arg(1);
    $terms = taxonomy_node_get_terms($nid);
    rsort($terms);
    $tid = $terms[0]->tid;
} elseif (arg(0) == 'taxonomy' && arg(1) == 'term') {
    $terms = preg_split('/[+ ,]/', arg(2));
    $tid = $terms[0];
}
$parents = taxonomy_get_parents($tid);
foreach ($parents as $parent) {
    $i++;
}
$tree = taxonomy_get_tree($vocabulary);

foreach ($tree as $key => $term) {
    if ( $term->depth == 0 ) {
        $title = $term->name;
        if ($topoflist == 0) {
            print '</ul></li></ul>'."\n";
        }
        if ($tree[$key+1]->depth==1){
            if ($term->tid == $parent->tid) {
                print '<ul>'."\n".
                '<li class="title active" onClick="showHide(event)">'.$title.
                "\n".'<ul class="active">'."\n";
            } else {
                print '<ul>'."\n".
                '<li class="title" onClick="showHide(event)">'.$title.
                "\n".'<ul class="menu">'."\n";
            }
        }
        else {
            print '<ul>'."\n".
                '<li class="title">'.l($title,'taxonomy/term/'.$term->tid).
                "\n".'<ul class="menu">'."\n";
        }
        $topoflist = 0;
    }
    if ($term->depth > 0) {
        if ($term->tid == $tid) {
            print '<li id="darker">' . l($term->name, "taxonomy/term/$term->tid") . '</li>' . "\n";
        } else {
            print '<li class="leaf notdarker">' . l($term->name, "taxonomy/term/$term->tid") . '</li>' . "\n";
        }
    }
    $lastdepth = $term->depth;
}
print '</ul></li></ul>';
?>

Comments

the1brit

I tried to post this into a block and try it, but all i get is a block with code in it. I created a input format without any filters and used that input format for the block. I thought maybe fck was messing it up, so I turned fck off. Still no luck. Any insights/

admin

This should work fine with php as the block filter. Not sure what you mean by fck?

apurv

Thank you for this code ... as it helped me to print what i wanted