These are all the predefined PHP variable

$_SERVER

• $_SERVER['LD_LIBRARY_PATH'] = /usr/local/apache24/lib
• $_SERVER['PWD'] = /var/www/html/cgi-bin
• $_SERVER['PHP_FCGI_MAX_REQUESTS'] = 1000
• $_SERVER['SHLVL'] = 0
• $_SERVER['PATH'] = /sbin:/bin:/usr/sbin:/usr/bin
• $_SERVER['ORIG_SCRIPT_NAME'] = /cgi-bin/php56.fcgi
• $_SERVER['ORIG_PATH_TRANSLATED'] = /membri/zintinos/superglobals.php
• $_SERVER['ORIG_PATH_INFO'] = /superglobals.php
• $_SERVER['ORIG_SCRIPT_FILENAME'] = /var/www/html/cgi-bin/php56.fcgi
• $_SERVER['SCRIPT_NAME'] = /superglobals.php
• $_SERVER['REQUEST_URI'] = /superglobals.php
• $_SERVER['QUERY_STRING'] =
• $_SERVER['REQUEST_METHOD'] = GET
• $_SERVER['SERVER_PROTOCOL'] = HTTP/1.1
• $_SERVER['GATEWAY_INTERFACE'] = CGI/1.1
• $_SERVER['REDIRECT_URL'] = /superglobals.php
• $_SERVER['REMOTE_PORT'] = 13500
• $_SERVER['SCRIPT_FILENAME'] = /membri/zintinos/superglobals.php
• $_SERVER['SERVER_ADMIN'] = [email protected]
• $_SERVER['CONTEXT_DOCUMENT_ROOT'] = /var/www/html/cgi-bin/
• $_SERVER['CONTEXT_PREFIX'] = /cgi-bin/
• $_SERVER['REQUEST_SCHEME'] = http
• $_SERVER['DOCUMENT_ROOT'] = /var/www/html
• $_SERVER['REMOTE_ADDR'] = 172.70.127.30
• $_SERVER['SERVER_PORT'] = 80
• $_SERVER['SERVER_ADDR'] = 176.9.125.105
• $_SERVER['SERVER_NAME'] = zintinos.altervista.org
• $_SERVER['SERVER_SOFTWARE'] = Apache
• $_SERVER['SERVER_SIGNATURE'] =
• $_SERVER['HTTP_CF_IPCOUNTRY'] = US
• $_SERVER['HTTP_CDN_LOOP'] = cloudflare
• $_SERVER['HTTP_CF_CONNECTING_IP'] = 3.144.102.239
• $_SERVER['HTTP_USER_AGENT'] = Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])
• $_SERVER['HTTP_ACCEPT'] = */*
• $_SERVER['HTTP_CF_VISITOR'] = {"scheme":"http"}
• $_SERVER['HTTP_X_FORWARDED_PROTO'] = http
• $_SERVER['HTTP_CF_RAY'] = 87a56046f868294c-ORD
• $_SERVER['HTTP_X_FORWARDED_FOR'] = 3.144.102.239
• $_SERVER['HTTP_ACCEPT_ENCODING'] = gzip
• $_SERVER['HTTP_CONNECTION'] = close
• $_SERVER['HTTP_HOST'] = zintinos.altervista.org
• $_SERVER['AV_WP_SKIP_XMLRPC'] = on
• $_SERVER['HOSTNAME'] = ns579.altervista.org
• $_SERVER['AV_SERVER_LANG'] = it
• $_SERVER['SCRIPT_URI'] = http://zintinos.altervista.org/superglobals.php
• $_SERVER['SCRIPT_URL'] = /superglobals.php
• $_SERVER['REDIRECT_STATUS'] = 200
• $_SERVER['REDIRECT_HANDLER'] = av-php53
• $_SERVER['REDIRECT_AV_TOOLBAR'] = 1
• $_SERVER['REDIRECT_AV_WP_SKIP_XMLRPC'] = on
• $_SERVER['REDIRECT_HOSTNAME'] = ns579.altervista.org
• $_SERVER['REDIRECT_AV_SERVER_LANG'] = it
• $_SERVER['REDIRECT_SCRIPT_URI'] = http://zintinos.altervista.org/superglobals.php
• $_SERVER['REDIRECT_SCRIPT_URL'] = /superglobals.php
• $_SERVER['FCGI_ROLE'] = RESPONDER
• $_SERVER['PHP_SELF'] = /superglobals.php
• $_SERVER['REQUEST_TIME_FLOAT'] = 1714121959.7996
• $_SERVER['REQUEST_TIME'] = 1714121959

$_ENV

$_REQUEST

$_GET

$_POST

$_COOKIE

$_FILES

$_CUSTOM

you may find the meaning of each key here