Error

PHP Noticeyii\base\ErrorException

Undefined offset: 0

$_GET = [
    'str' => 'Kevin%20Ni',
    'id' => '186',
];

$_SERVER = [
    'REDIRECT_UNIQUE_ID' => 'ZgVxrm9DJAO@XoXHE4QnDQAAABA',
    'REDIRECT_HTTPS' => 'on',
    'REDIRECT_SSL_TLS_SNI' => 'www.thinkwithu.com',
    'REDIRECT_STATUS' => '200',
    'UNIQUE_ID' => 'ZgVxrm9DJAO@XoXHE4QnDQAAABA',
    'HTTPS' => 'on',
    'SSL_TLS_SNI' => 'www.thinkwithu.com',
    'HTTP_ACCEPT' => '*/*',
    'HTTP_USER_AGENT' => 'claudebot',
    'HTTP_REFERER' => 'http://www.thinkwithu.com/teachers/Kevin%2520Ni/186.html',
    'HTTP_HOST' => 'www.thinkwithu.com',
    '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' => 'www.thinkwithu.com',
    'SERVER_ADDR' => '172.18.175.120',
    'SERVER_PORT' => '443',
    'REMOTE_ADDR' => '54.82.44.149',
    'DOCUMENT_ROOT' => '/var/www/html/thinkwithu/web',
    'REQUEST_SCHEME' => 'https',
    'CONTEXT_PREFIX' => '',
    'CONTEXT_DOCUMENT_ROOT' => '/var/www/html/thinkwithu/web',
    'SERVER_ADMIN' => 'root@localhost',
    'SCRIPT_FILENAME' => '/var/www/html/thinkwithu/web/index.php',
    'REMOTE_PORT' => '54890',
    'REDIRECT_URL' => '/teachers/Kevin%20Ni/186.html',
    'GATEWAY_INTERFACE' => 'CGI/1.1',
    'SERVER_PROTOCOL' => 'HTTP/1.1',
    'REQUEST_METHOD' => 'GET',
    'QUERY_STRING' => '',
    'REQUEST_URI' => '/teachers/Kevin%2520Ni/186.html',
    'SCRIPT_NAME' => '/index.php',
    'PHP_SELF' => '/index.php',
    'REQUEST_TIME_FLOAT' => 1711632814.8800001,
    'REQUEST_TIME' => 1711632814,
];

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