<?php
function getParentAndChild($data, $id)
{
$tree = array(
"parents" => array(),
"children" => array(),
"full" => array()
);
$current = $data[$id];
$parent_id = $current === NULL ? "NULL" : $current;
$child_ids = array($id);
$tree['parents'][] = $parent_id;
while (isset($data[$parent_id])) {
$current = $data[$parent_id];
$parent_id = $current === NULL ? "NULL" : $current;
$tree['parents'][] = $parent_id;
}
while ( count($child_ids) > 0 ) {
foreach($child_ids as $child_id) {
$children = array_keys($data, $child_id);
foreach ($children as $child) $tree['children'][] = $child;
$child_ids = $children;
}
}
$tree['full'] = array_merge(array_reverse($tree['parents']), $tree['children']);
echo implode(" > ", $tree['full']);
}
$treeByCat = array(
1 => 0,
2 => 0,
3 => 1,
7 => 1,
4 => 3,
5 => 4,
6 => 5,
8 => 5
);
print_r( display_parent_nodes($treeByCat, 4) );
//print_r( getTree($treeByParent, $treeByCat, 4, 0) );
preferences:
32.94 ms | 402 KiB | 5 Q