Exam 22dec Gosho is moving

<?php

$_GET['luggage']= 'furniture;living room;pink couch;40.85kgC|_|furniture;bedroom;night table;
5.12kgC|_|boxes;kitchen;plates;10.36kgC|_|boxes;kitchen;cups;10.36kgC|_|boxes;kitchen;tableware;
7.6kgC|_|boxes;living room;glasses;3.32kgC|_|boxes;living room;dresses;4.32kgC|_|bags;hall;shoes;5.9kgC|_|';

$_GET['typeLuggage'] = ['furniture', 'boxes', 'bags'];

$_GET['room'] = 'living room';

$_GET['minWeight'] = '5';
$_GET['maxWeight'] = '50';

//SOLUTION STARTS FROM HERE
$luggage = array_filter(explode('C|_|', trim($_GET['luggage'])));

$lugTypes = $_GET['typeLuggage'];
$room = $_GET['room'];
$minWeight =$_GET['minWeight'] = '5';
$maxWeight = $_GET['maxWeight'] = '50';
$lugPieces = array();
foreach ($luggage as $piece) {
    $piece = explode(';', $piece);
    $type = trim($piece[0]);
    $place = trim($piece[1]);
    $item = trim($piece[2]);
    $weight = intval($piece[3]);
    if (!array_key_exists($type, $lugPieces)) {
        $lugPieces[$type] = array();
    }
    if (!array_key_exists($place, $lugPieces[$type])) {
        $lugPieces[$type][$place] = array();
        $lugPieces[$type][$place]['weight'] = $weight;
    } else {
        $lugPieces[$type][$place]['weight'] += $weight;
    }
    $lugPieces[$type][$place]['items'][] = $item;



}

$lugPieces = array_filter($lugPieces, function($v, $k) use ($lugTypes){
   return in_array($k, $lugTypes);
}, 1);

foreach ($lugPieces as $key => $piece) {
    $lugPieces[$key] = array_filter($piece, function($v, $k) use ($room, $minWeight, $maxWeight){
        return $k === $room && ($v['weight'] >= $minWeight && $v['weight'] <= $maxWeight);
    }, 1);

}
$lugPieces = array_filter($lugPieces);

ksort($lugPieces);
foreach ($lugPieces as $key => $piece) {
    ksort($piece);
    foreach ($piece as $k => $lugRoom) {
        sort($lugRoom['items']);
        $piece[$k] = $lugRoom;
    }
    $lugPieces[$key] = $piece;
}


echo '<ul>';
foreach ($lugPieces as $type => $item) {
    echo '<li><p>'.htmlspecialchars($type).'</p><ul>';
    foreach ($item as $kroom => $room) {
        echo '<li><p>'.htmlspecialchars($kroom).'</p>';
        foreach ($room['items'] as $k => $item) {
            $room['items'][$k] = htmlspecialchars($item);
        }
        $pieces = implode(', ', $room['items']);
        echo '<ul><li><p>'.$pieces.' - '. $room['weight'] .'kg</p></li></ul></li>';
    }
    echo '</ul></li>';
}
echo '</ul>';