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@vyspiansky
vyspiansky / build-tree.php
Last active September 9, 2024 14:33
PHP: convert object / array to tree structure
<?php
/**
* The below functions take the single level array of items as an argument
* and turn it into a multidimensional array structure (tree),
* where each item has an array of sub-items.
*
* Each item should have at least an `id` and `parent_id`,
* where the `parent_id` is `0` if it's top level.
*
* Source: http://goo.gl/p2GybZ