[Variables]

ALL_HTTP=All HTTP variables
AUTH_PASS=
AUTH_TYPE=If the server supports user authentication, and the script is protected, this is the protocol-specific authentication method used to validate the user.
CONTENT_LENGHT=The length of the content as given by the client.
CONTENT_TYPE=For queries that have attached information, such as HTTP POST and PUT, this is the content type of the data.
GATEWAY_INTERFACE=The revision of the CGI specification to which this server complies. Format: CGI/revision.
HTTP_ACCEPT_LANGUAGE=
HTTP_ACCEPT=List of Content-types the browser can accept (defined by the HTTP Accept header).
HTTP_CONNECTION=
HTTP_USER_AGENT=The browser the client is currently using to send the request. Format: software/version library/version.
HTTP_COOKIE=Cookies stored
LOGON_ACCEPT_ENCODING=
PATH_INFO=The extra path information, as given by the client. In other words, scripts can be accessed by their virtual pathname, followed by extra information at the end of this path. The extra information is sent as PATH_INFO.
PATH_TRANSLATED=The server provides a translated version of PATH_INFO, which takes the path and does any virtual-to-physical mapping to it.
QUERY_STRING=The query information that follows the ? in the URL that referenced this script
REMOTE_ADDR=The IP address of the remote host making the request
REMOTE_HOST=The hostname making the request. If the server does not have this information, it sets REMOTE_ADDR and leaves this unset.
REMOTE_IDENT=If the HTTP server supports RFC 931 identification, then this variable is set to the remote user name retrieved from the server. Usage of this variable should be limited to logging only.
REMOTE_USER=Requesting machine's username
REQUEST_BODY=
REQUEST_METHOD=The method with which the request was made
SCRIPT_NAME=A virtual path to the script being executed, used for self-referencing URLs
SERVER_NAME=Name of server request was sent to
SERVER_PORT=The port number to which the request was sent
SERVER_PORT_SECURE=
SERVER_PROTOCOL=The name and revision of the information protocol this request came in with. Format: protocol/revision.
SERVER_SOFTWARE=The name and version of the information server software answering the request (and running the gateway). Format: name/version.
URL=