Error

PHP Noticeyii\base\ErrorException

Trying to get property of non-object

$_GET = [
    'title' => '%E5%90%88%E4%BD%9C%E6%9C%BA%E4%BC%9A',
    'type' => '%E5%AE%A2%E6%88%B7%E4%B8%AD%E5%BF%83',
    'number' => '10',
    'second' => '12',
];

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