Gosho Is Moving

<?php
$luggage = preg_split('/\s*C\|_\|\s*/', $_GET['luggage'], -1, PREG_SPLIT_NO_EMPTY);
$typeLuggage = array();
if (isset($_GET['typeLuggage'])) {
    foreach ($_GET['typeLuggage'] as $type) {
        $typeLuggage[] = $type;
    }
}

$room = $_GET['room'];
$minWeight = $_GET['minWeight'];
$maxWeight = $_GET['maxWeight'];

if (empty($typeLuggage) || $room == '' || $minWeight == '' || $maxWeight == '') {
    die('<ul></ul>');
}

$minWeight = (int)$minWeight;
$maxWeight = (int)$maxWeight;
$filteredLuggage = array();
$typeWeightArr = array();
foreach ($luggage as $piece) {
    $pieceInfo = preg_split('/\s*\;\s*/', $piece, -1, PREG_SPLIT_NO_EMPTY);
    $type = $pieceInfo[0];

    if (!in_array($type, $typeLuggage) || $pieceInfo[1] != $room) {
        continue;
    }

    if (!array_key_exists($type, $filteredLuggage)) {
        $filteredLuggage[$type] = array();
        $typeWeightArr[$type] = 0;
    }

    $luggageName = $pieceInfo[2];
    $typeWeightArr[$type] += (int)$pieceInfo[3];
    array_push($filteredLuggage[$type], $luggageName);
}

foreach ($typeWeightArr as $type => $weight) {
    if ($weight < $minWeight || $weight > $maxWeight) {
        unset($typeWeightArr[$type]);
        unset($filteredLuggage[$type]);
    }
}

ksort($filteredLuggage);
$result = '<ul>';
foreach ($filteredLuggage as $type => $list) {
    sort($list);
    $result .= '<li><p>' . $type . '</p><ul><li><p>' . $room . '</p><ul><li><p>';
    $result .= implode(', ', $list) . ' - ' . $typeWeightArr[$type] . 'kg</p></li></ul></li></ul></li>';
}

echo $result . '</ul>';