ipreg/location.php

<?php
/*****************************************************************************
IP Reg, a PHP/MySQL IPAM tool
Copyright (C) 2007-2009 Wietse Warendorff (up to v0.5)
Copyright (C) 2011-2023 Thomas Hooge

SPDX-License-Identifier: GPL-3.0-or-later
*****************************************************************************/

include("includes.php");
		
include("header.php");
		
$query = "SELECT
	location_id AS id,
	location_name AS value,
	location_parent AS parent_id
FROM
	location
ORDER BY location_parent, location_sort, location_name";

$locations = $db->db_select($query);

// function for recursion
function build_tree($parent_id, $level) {
    global $locations;
    $children = array();
    foreach ($locations as $key => $location) {
        if ($location['parent_id'] == $parent_id) {
            unset($location['parent_id']);
            $location['children'] = build_tree($location['id'], $level+1);
            $location['level'] = $level;
            $location['href'] = 'locationview.php?location_id=' . $location['id'];
            $children[] = $location;
        }
    }
    return $children;
}

$tree = build_tree(0, 0);
$smarty->assign("locations", $tree);

$smarty->display("location.tpl");

include("footer.php");
?>