array(33) {
  ["USER"] => string(3) "www"
  ["HOME"] => string(9) "/home/www"
  ["FCGI_ROLE"] => string(9) "RESPONDER"
  ["SCRIPT_FILENAME"] => string(26) "/data/www/visacn/index.php"
  ["QUERY_STRING"] => string(0) ""
  ["REQUEST_METHOD"] => string(3) "GET"
  ["CONTENT_TYPE"] => string(0) ""
  ["CONTENT_LENGTH"] => string(0) ""
  ["SCRIPT_NAME"] => string(10) "/index.php"
  ["REQUEST_URI"] => string(1) "/"
  ["DOCUMENT_URI"] => string(10) "/index.php"
  ["DOCUMENT_ROOT"] => string(16) "/data/www/visacn"
  ["SERVER_PROTOCOL"] => string(8) "HTTP/1.1"
  ["REQUEST_SCHEME"] => string(4) "http"
  ["GATEWAY_INTERFACE"] => string(7) "CGI/1.1"
  ["SERVER_SOFTWARE"] => string(12) "nginx/1.11.6"
  ["REMOTE_ADDR"] => string(15) "100.116.227.122"
  ["REMOTE_PORT"] => string(5) "32159"
  ["SERVER_ADDR"] => string(12) "10.29.44.180"
  ["SERVER_PORT"] => string(2) "80"
  ["SERVER_NAME"] => string(13) "*.uncle-ad.cn"
  ["REDIRECT_STATUS"] => string(3) "200"
  ["PATH_INFO"] => string(0) ""
  ["HTTP_REMOTEIP"] => string(14) "54.173.237.152"
  ["HTTP_HOST"] => string(11) "uncle-ad.cn"
  ["HTTP_X_FORWARDED_FOR"] => string(14) "54.173.237.152"
  ["HTTP_CONNECTION"] => string(5) "close"
  ["HTTP_USER_AGENT"] => string(40) "CCBot/2.0 (https://commoncrawl.org/faq/)"
  ["HTTP_ACCEPT"] => string(63) "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"
  ["HTTP_ACCEPT_ENCODING"] => string(4) "gzip"
  ["PHP_SELF"] => string(10) "/index.php"
  ["REQUEST_TIME_FLOAT"] => float(1550868097.438)
  ["REQUEST_TIME"] => int(1550868097)
}