Error

PHP Noticeyii\base\ErrorException

Undefined variable: key

$_GET = [
    'name' => '考研日历',
    'page' => '6',
    'per-page' => '10',
];

$_SERVER = [
    'REDIRECT_UNIQUE_ID' => 'ZgWqV5YXCIGjWDJK2gaotgAAAGs',
    'REDIRECT_STATUS' => '200',
    'UNIQUE_ID' => 'ZgWqV5YXCIGjWDJK2gaotgAAAGs',
    'HTTP_ACCEPT' => '*/*',
    'HTTP_USER_AGENT' => 'claudebot',
    'HTTP_HOST' => 'kaoyan.viplgw.cn',
    'PATH' => '/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin',
    'SERVER_SIGNATURE' => '',
    'SERVER_SOFTWARE' => 'Apache/2.4.6 (CentOS) OpenSSL/1.0.2k-fips PHP/5.6.40',
    'SERVER_NAME' => 'kaoyan.viplgw.cn',
    'SERVER_ADDR' => '172.18.175.120',
    'SERVER_PORT' => '80',
    'REMOTE_ADDR' => '18.208.172.3',
    'DOCUMENT_ROOT' => '/var/www/html/graduate/web',
    'REQUEST_SCHEME' => 'http',
    'CONTEXT_PREFIX' => '',
    'CONTEXT_DOCUMENT_ROOT' => '/var/www/html/graduate/web',
    'SERVER_ADMIN' => 'root@localhost',
    'SCRIPT_FILENAME' => '/var/www/html/graduate/web/index.php',
    'REMOTE_PORT' => '52322',
    'REDIRECT_QUERY_STRING' => 'name=%E8%80%83%E7%A0%94%E6%97%A5%E5%8E%86&page=6&per-page=10',
    'REDIRECT_URL' => '/cn/cet-news/information-list',
    'GATEWAY_INTERFACE' => 'CGI/1.1',
    'SERVER_PROTOCOL' => 'HTTP/1.1',
    'REQUEST_METHOD' => 'GET',
    'QUERY_STRING' => 'name=%E8%80%83%E7%A0%94%E6%97%A5%E5%8E%86&page=6&per-page=10',
    'REQUEST_URI' => '/cn/cet-news/information-list?name=%E8%80%83%E7%A0%94%E6%97%A5%E5%8E%86&page=6&per-page=10',
    'SCRIPT_NAME' => '/index.php',
    'PHP_SELF' => '/index.php',
    'REQUEST_TIME_FLOAT' => 1711647319.786,
    'REQUEST_TIME' => 1711647319,
];

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