The meaning and usage of the $ _ SERVER variable in php

Meaning and usage of the $ _ SERVER variable in php $ _ SERVER [& amp; #39; PHP_SELF & amp; #39;] function usage # file name of the script being executed, related to documentroot. $ _ SERVER [& amp; #39; argv & amp; #39;] function usage # parameters passed to the script. $ _ SERVER [& amp; #39...

Meaning and usage of the $ _ SERVER variable in php $ _ SERVER ['php _ SELF '] function usage # file name of the script being executed, which is related to document root.

$ _ SERVER ['argv'] function usage # parameters passed to the script.

$ _ SERVER ['argc '] function usage # contains the number of command line parameters passed to the program (if running in command line mode ).

$ _ SERVER ['gateway _ interface'] function usage # The CGI standard version used by the SERVER. For example, "CGI/1.1 ".

$ _ SERVER ['server _ name'] function usage # NAME of the SERVER host where the script is currently running.

$ _ SERVER ['server _ soft'] function usage # string identified by the SERVER, which is provided in the header of the response request.

$ _ SERVER ['server _ protocol'] function usage # name and version of the communication PROTOCOL when requesting the page. For example, "HTTP/1.0 ".

$ _ SERVER ['request _ method'] function usage # request method when accessing the page. For example, "GET", "HEAD", "POST", and "PUT ".

$ _ SERVER ['query _ string'] function usage # query string.

$ _ SERVER ['document _ root'] function usage # ROOT directory of the DOCUMENT where the script is currently running. Defined in the server configuration file.

$ _ SERVER ['http _ ACCEPT '] function usage # Accept of the current request: content in the header.

$ _ SERVER ['http _ ACCEPT_CHARSET '] function usage # Accept-Charset of the current request: content in the header. Example: "ISO-8859-1, *, UTF-8 ".

$ _ SERVER ['http _ ACCEPT_ENCODING '] function usage # Accept-Encoding of the current request: content in the header. For example, "gzip ".

$ _ SERVER ['http _ ACCEPT_LANGUAGE '] function usage # Accept-Language of the current request: content in the header. For example, "en ".

$ _ SERVER ['http _ connection'] function usage # CONNECTION of the current request: content in the header. For example, "Keep-Alive ".

$ _ SERVER ['http _ host'] function usage # HOST of the current request: content in the header.

$ _ SERVER ['http _ referer'] function usage # Link to the URL of the previous page of the current page.

$ _ SERVER ['http _ USER_AGENT '] function usage # User_Agent of the current request: content in the header.

$ _ SERVER ['remote _ ADDR '] function usage # browsing the IP address of the user on the current page.

$ _ SERVER ['remote _ host'] function usage # the HOST name of the user browsing the current page.

$ _ SERVER ['remote _ port'] function usage # PORT used by the user to connect to the SERVER.

$ _ SERVER ['script _ filename'] function usage # The absolute path name of the currently executed SCRIPT.

$ _ SERVER ['server _ admin'] function usage # Administrator information.

$ _ SERVER ['server _ port'] function usage # PORT used by the SERVER.

$ _ SERVER ['server _ SIGNATURE '] function usage # a string containing the SERVER version and virtual host name.

$ _ SERVER ['path _ TRANSLATED '] function usage # Basic PATH of the file system where the current script is located (not the root directory of the document.

$ _ SERVER ['script _ name'] function usage # contains the path of the current SCRIPT. This is useful when the page needs to point to itself.

$ _ SERVER ['request _ URI '] function usage # URI required to access this page. For example, "/index.html ".

$ _ SERVER ['php _ AUTH_USER '] function usage # When PHP runs in the Apache module mode and uses the HTTP authentication function, this variable is the user name entered by the user.

$ _ SERVER ['php _ AUTH_PW '] function usage # When PHP runs in the Apache module mode and uses the HTTP authentication function, this variable is the password entered by the user.

$ _ SERVER ['auth _ type'] function usage # When PHP runs in the Apache module mode and uses the HTTP authentication function, this variable is the authentication TYPE.

$ _ SERVER ['php _ SELF '] function usage # file name of the script being executed, which is related to document root.