Error

PHP Noticeyii\base\ErrorException

Undefined index: next

$_GET = [
    'code' => 'lo-trinh-hoc-toeic',
    'page' => '3',
    'per-page' => '10',
];

$_SERVER = [
    'USER' => 'nginx',
    'HOME' => '/var/lib/nginx',
    'HTTP_HOST' => 'anhnguathena.vn',
    'HTTP_USER_AGENT' => 'claudebot',
    'HTTP_ACCEPT' => '*/*',
    'REDIRECT_STATUS' => '200',
    'SERVER_NAME' => 'anhnguathena.vn',
    'SERVER_PORT' => '443',
    'SERVER_ADDR' => '103.143.206.110',
    'REMOTE_PORT' => '41590',
    'REMOTE_ADDR' => '18.213.4.140',
    'SERVER_SOFTWARE' => 'nginx/1.16.1',
    'GATEWAY_INTERFACE' => 'CGI/1.1',
    'HTTPS' => 'on',
    'REQUEST_SCHEME' => 'https',
    'SERVER_PROTOCOL' => 'HTTP/1.1',
    'DOCUMENT_ROOT' => '/srv/www/anhnguathena.vn/web/www',
    'DOCUMENT_URI' => '/index.php',
    'REQUEST_URI' => '/tags/lo-trinh-hoc-toeic?page=3&per-page=10',
    'CONTENT_LENGTH' => '',
    'CONTENT_TYPE' => '',
    'REQUEST_METHOD' => 'GET',
    'QUERY_STRING' => 'page=3&per-page=10',
    'SCRIPT_NAME' => '/index.php',
    'SCRIPT_FILENAME' => '/srv/www/anhnguathena.vn/web/www/index.php',
    'FCGI_ROLE' => 'RESPONDER',
    'PHP_SELF' => '/index.php',
    'REQUEST_TIME_FLOAT' => 1711691102.122201,
    'REQUEST_TIME' => 1711691102,
];