PHP: Create a array tree from array list

readme.md

EXAMPLE

$list = array(
	array(
		'ID' => 1,
		'parent_id' => 0,
		'name' => 'Lenivene Bezerra'
	),
	array(
		'ID' => 2,
		'parent_id' => 1,
		'name' => 'Michael S. Carnahan'
	),
	array(
		'ID' => 3,
		'parent_id' => 2,
		'name' => 'Billy T. Nealon'
	)
);

$tree = inel_set_tree($list, 'parent_id', 'ID');

echo "<pre>";
var_dump( $tree );

hierarchy_tree.php

<?php
/**
 * Create a array tree from array list
 *
 * @param array   ( Required )  The list to create tree
 * @param string                The name key parent. Ex: parent_id
 * @param string                The key to check child. Ex: ID
 * 
 * @return array|false Returns array if the date given is not empty; otherwise returns FALSE.
 */
function inel_set_tree( $list, $PIDkey = 'parent_id', $IDkey = 'ID' ){
	$children = [];
	foreach( $list as $child ){
		if( isset( $child[ $PIDkey ] ) ){
			$children[ $child[ $PIDkey ] ][] = $child;
		}
	}

	if( empty( $children ) )
		return false;

	list( $start_tree ) = $children;

	$fn_set_tree = function( $brethren ) use ( &$fn_set_tree, $children, $IDkey ){
		foreach( $brethren as $key => $brother ){
			$ID = $brother [ $IDkey ];

			if( isset( $children[ $ID ] ) )
				$brother['children'] = $fn_set_tree( $children[ $ID ] );

			$brethren[ $key ] = $brother;
		}

		return $brethren;
	};

	$tree = $fn_set_tree( $start_tree );

	return $tree;
}