Error

PHP Noticeyii\base\ErrorException

Undefined offset: 2

$_GET = [
    'name' => 'Cabinete metalice %28rack-uri%29',
    'id' => '362',
    'filter1' => 'Inaltime%20(U)%7C6U%7C1094',
    'filter2' => 'Tip%20rack%7CPerete%20(wall-mount)%7C1090',
];