Getting Started tutorial-php function $_server

$_server[' php_self ': The name of the file that is currently executing the script, related to document root.

$_server[' argv ': arguments passed to the script.

$_server[' argc ': Contains the number of command-line arguments that are passed to the program, if running in command line mode.

$_server[' Gateway_interface ': The version of the CGI specification used by the server, for example: "cgi/1.1".

$_server[' server_name ': The name of the server host on which the script is currently running.

$_server[' Server_software ': A string that is identified by the server, given in the header in response to the request.

$_server[' Server_protocol ': The name and version of the communication protocol when the page is requested, for example: "http/1.0".

$_server[' Request_method ': The request method when accessing the page, for example:, POST and put.

$_server[' query_string ': A string of queries (query).

$_server[' Document_root ': The document root directory where the currently running script is located, defined in the server configuration file.

$_server[' http_accept ': The current requested ACCEPT: The contents of the head.

$_server[' Http_accept_charset ': The current requested accept-charset: The contents of the head, for example: "Iso-8859-1,*,utf-8".

$_server[' http_accept_encoding ': The current requested accept-encoding: The contents of the header, for example: "gzip".

$_server[' http_accept_language ': The current requested accept-language: The contents of the head, for example: "en".

$_server[' http_connection ': The current requested CONNECTION: The contents of the head, for example: "Keep-alive".

$_server[' http_host ': The current requested HOST: The contents of the header.

$_server[' http_referer ': link to the URL address of the previous page of the current page.

$_server[' http_user_agent ': The current requested user_agent: The contents of the head.

$_server[' REMOTE_ADDR ': The IP address of the user who is browsing the current page.

$_server[' Remote_host ': The host name of the user who is browsing the current page.

$_server[' Remote_port ': The port used by the user to connect to the server.

$_server[' script_filename ': the absolute pathname of the currently executing script.

$_server[' Server_admin ']: Administrator information.

$_server[' Server_port ': The port used by the server.

$_server[' server_signature ': A string containing the server version and the virtual host name.

$_server[' path_translated ': The basic path to the file system (not the document root) where the current script resides.

$_server[' Script_name ': Contains the path of the current script, which is useful when the page needs to point to itself.

$_server[' Request_uri ': the URI required to access this page, for example: "/index.html".

$_server[' Php_auth_user ': When PHP is running in the Apache module mode, and the HTTP authentication function is being used, this variable is the user name entered by the user.

$_server[' PHP_AUTH_PW ': When PHP is running in the Apache module mode, and the HTTP authentication function is being used, this variable is the password entered by the user.

$_server[' auth_type ': When PHP is running in the Apache module mode, and is using the HTTP authentication function, this variable is the type of authentication.