PHP $_SERVER Arguments : _SERVER « Form « PHP

PHP $_SERVER Arguments

Argument               Result

PHP_SELF               Returns the filename of the current script with the path relative to the root

SERVER_PROTOCOL        Returns the name and revision of the page-requested protocol

REQUEST_METHOD         Returns the request method used to access the page

REQUEST_TIME           Returns the timestamp from the beginning of the request

DOCUMENT_ROOT          Returns the root directory under which the current script is executing

HTTP_REFERER           Returns the page address that referred to the current page

HTTP_USER_AGENT        Returns the user agent of the header from the current request (handy for browser identification)

REMOTE_ADDR            Returns the IP address of the current user (handy for security)

REMOTE_PORT            Returns the port of the user's machine that is accessing the page

SCRIPT_FILENAME        Returns the absolute filename from the current script

SCRIPT_NAME            Returns the path of the current script

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2.Adjusting behavior based on an environment variable
3.Deciding what to do based on request method
4.Log use IP address
5.Getting Times and Dates of Files: $_SERVER['SCRIPT_FILENAME']
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