Error

PHP Noticeyii\base\ErrorException

Undefined variable: fil

$_GET = [
    'url1' => 'smart_watch',
    'url2' => '123',
    'url3' => 'garmin',
    'url4' => 'vívomove',
];

$_SESSION = [
    '__flash' => [],
    'city' => 'almaty',
];