Error

PHP Noticeyii\base\ErrorException

Undefined offset: 0

$_GET = [
    'id' => '18038',
    'PHPSESSID' => '3552ur00489gdk6is4qei4bpk1',
];

$_SERVER = [
    'REDIRECT_UNIQUE_ID' => 'ZgX5XM-ApE0scveYt4MVnAAAADI',
    'REDIRECT_STATUS' => '200',
    'UNIQUE_ID' => 'ZgX5XM-ApE0scveYt4MVnAAAADI',
    'HTTP_ACCEPT' => '*/*',
    'HTTP_USER_AGENT' => 'claudebot',
    'HTTP_REFERER' => 'http://toefl.gmatonline.cn/teacher/18038.html?PHPSESSID=3552ur00489gdk6is4qei4bpk1',
    'HTTP_HOST' => 'toefl.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' => 'toefl.viplgw.cn',
    'SERVER_ADDR' => '172.18.175.120',
    'SERVER_PORT' => '80',
    'REMOTE_ADDR' => '44.192.53.34',
    'DOCUMENT_ROOT' => '/var/www/html/toeflonline.cn/web',
    'REQUEST_SCHEME' => 'http',
    'CONTEXT_PREFIX' => '',
    'CONTEXT_DOCUMENT_ROOT' => '/var/www/html/toeflonline.cn/web',
    'SERVER_ADMIN' => 'root@localhost',
    'SCRIPT_FILENAME' => '/var/www/html/toeflonline.cn/web/index.php',
    'REMOTE_PORT' => '60776',
    'REDIRECT_QUERY_STRING' => 'PHPSESSID=3552ur00489gdk6is4qei4bpk1',
    'REDIRECT_URL' => '/teacher/18038.html',
    'GATEWAY_INTERFACE' => 'CGI/1.1',
    'SERVER_PROTOCOL' => 'HTTP/1.1',
    'REQUEST_METHOD' => 'GET',
    'QUERY_STRING' => 'PHPSESSID=3552ur00489gdk6is4qei4bpk1',
    'REQUEST_URI' => '/teacher/18038.html?PHPSESSID=3552ur00489gdk6is4qei4bpk1',
    'SCRIPT_NAME' => '/index.php',
    'PHP_SELF' => '/index.php',
    'REQUEST_TIME_FLOAT' => 1711667548.4300001,
    'REQUEST_TIME' => 1711667548,
];

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