<?php
$categories = array(
array(
'parent_id' => 0,
'categories_id' => 1,
),
array(
'parent_id' => 0,
'categories_id' => 2,
),
array(
'parent_id' => 1,
'categories_id' => 11,
),
array(
'parent_id' => 1,
'categories_id' => 111,
),
array(
'parent_id' => 2,
'categories_id' => 22,
),
);
$tree = array();
foreach ($categories as $category) {
$tree = &build($category, $tree);
}
// var_export($tree);
function &build($category, &$tree = array()) {
if ($category['parent_id'] == 0) {
$category = array(
$category['categories_id'] => $category,
);
$tree = array_merge($tree, $category);
return $tree;
}
foreach ($tree as $cate_id => $cate) {
var_dump($tree);
if ($category['parent_id'] == $cate_id) {
$tree[$cate_id]['childs'] = $category;
}
if (is_array($cate)) {
return build($cate, $tree);
}
}
return $tree;
}
preferences:
60.26 ms | 402 KiB | 5 Q